Thursday, December 29, 2011

Fermi LAT weekly report N. 185

Fermi LAT weekly report N. 185






Covered period: 2011 December 19-25
LAT Mission week: 185.57 - 186.57




  • Renewed flaring activity from blazar 4C +71.07 (S5 0836+71). This MeV-peaked FSRQs reached a flux level of about 1.7E-6 (3E-6 in a 6h time bin) on December 25 with soft photon index (see ATel#3831). This source has been active in gamma-rays for several weeks.

  • BL Lac showed a flare on December 22 (flux about 1.6E-6, soft photon index).

  • Other bright blazars reaching the flux level of 1E-6 in some days of the week are: 4C +28.07, PKS 0454-234, PKS 1424-41, PKS 1510-08.

  • Other blazars detected most days of the week (below 1E-6) are: PKS 2345-16, PKS 2326-502, B2 1520+31, Mkn 421, Mkn 501.

  • Other blazars sporadically detected during the week (below 1E-6) are: NGC 1275, B3 1343+451, PKS 0402-362, PKS 0537-441, PKS 0524-485, 4C +55.17, PMN J0533-4632, S5 0716+714, PKS 2155-304, 3C 66A, 3C 279



Fluxes are in the unit of photons/cm^2/s above 100 MeV.


Note. All the flux reported above are by the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification. - Please acknowledge the LAT team if you use information from this report.

For questions and comments please contact:
- S. Ciprini (stefano.ciprini[at]asdc.asi.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.



Thursday, December 22, 2011

Fermi LAT weekly report N. 184



Covered period: 2011.Dec.12 - 2011.Dec.18

LAT Mission week: 184.57 - 185.57






  • PKS 2123-463 detected in flaring activity on December 14, with a daily flux of (1.1+/-0.2)e-6 (Atel #3808). Swift follow-up observations of PKS 2123-463 confirmed the increase of activity also in UV and X-ray bands (Atel #3815).

  • PKS 0454-234 detected all week, with a daily flux between (0.5+/-0.1)e-6 and (1.1+/-0.2)e-6.

  • PKS 1510-08 detected in high state on December 18 with a daily flux of (1.9+/-0.5)e-6.

  • PKS 1343+451 detected all week, except December 13, with a daily flux between (0.4+/-0.2)e-6 and (0.8+/-0.2)e-6.

  • 4C +28.07 detected on December 14, 16 and 17, with a daily flux between (0.6+/-0.2)e-6 and (0.9+/-0.3)e-6.

  • B2 1520+31 detected on December 12, 15, and 18, with a daily flux between (0.4+/-0.2)e-6 and (0.5+/-0.2)e-6.

  • Sporadic daily detections of blazars: S5 0716+714 (Dec 12 and 18), PKS 2326-502 (Dec 12 and 14), PKS 1424-41 (Dec 13 and 14), PMN J2250-2806 (Dec 14), TXS 0059+581 (Dec 16), PMN J2345-1555 (Dec 17), PKS 2345-16 (Dec 18).




Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- M. Orienti (orienti[at]ira.inaf.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.





Friday, December 16, 2011



Covered period: 2011.Dec.5 - 2011.Dec.11

LAT Mission week: 183.57 - 184.57





  • PKS 0454-234 detected in a flaring activity with a high significance detection every day, with daily flux between (0.6+/-0.1)x10-6 and (1.1+/-0.2)x10-6.

  • B3 1343+451 detected every day in a high state, with daily flux between (0.6+/-0.2)x10-6 and (1.0+/-0.2)x10-6.

  • BL Lac detected every day except on Dec. 8 with a particularly
    high flux of (1.3+/-0.2)x10-6 on Dec. 11.

  • PKS 2326-502 detected on Dec. 5, 8 and 11 with daily flux
    between (0.4+/-0.1)x10-6 and (0.7+/-0.2)x10-6.

  • 4C +28.07 detected on Dec. 5, 6, 8 and 9 with daily flux
    between (0.6+/-0.2)x10-6 and (0.9+/-0.3)x10-6.

  • PKS 1424-41 detected in a high state on Dec. 11 with daily
    flux of (0.9+/-0.2)x10-6.

  • PMN J2345-1555, almost detected on Dec. 5 with TS=24.4,
    appeared as a significant detection on Dec. 7 and 9 with flux
    below 0.5x10-6.

  • 4C +71.07 popped up at the very beginning of the week on Dec.
    5 with a daily flux of (0.9+/-0.2)10-6.

  • TXS 0059+581 detected on Dec. 6 with a daily flux of (0.7+/-0.2)x10-6.

  • B2 1520+31 and PKS 0716+714 detected twice this week,
    respectively on Dec. 8 and 11 (with daily flux of (0.8+/-0.2)x10-6 and (0.5+/-0.2)x10-6) and on Dec. 10 and 11 (with daily flux of (0.3+/-0.1)x10-6 and (0.6+/-0.2)x10-6).

  • Markarian 501 almost detected on Dec. 10 with TS=24.7 and a
    daily flux of (0.4+/-0.2)x10-6.

  • Sporadic detections of blazars : ASP J134421+451449 on Dec. 8
    with daily flux of (0.6+/-0.2)x10-6, ASP J133838+450232 on
    Dec. 11 with daily flux of (0.8+/-0.2)x10-6, S5 0836+71 on Dec. 5 with daily flux of (0.9+/-0.2)x10-6.


Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- L. Escande (escande[at]cenbg.in2p3.fr) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Wednesday, December 14, 2011

Fermi LAT weekly report N.182



Covered period: 2011.Nov.28 - 2011.Dec.04

LAT Mission week: 182.57 - 183.57





  • B3 1343+451 was detected every day. It flared up to a daily flux of (1.2 ± 0.2) x 10-6 (on Nov 29th) before declining to (0.4 ± 0.2) x 10-6. This was the highest gamma-ray flux level detected from this very high redshift (z=2.534) FSRQ and was reported in ATel #3793. This source has been intermittently detected since early October and had a steadily rising daily-averaged flux from the preceding week.

  • PKS0454-234 was detected every day except Nov 29th with daily-averaged fluxes between (0.4 ± 0.2) x 10-6 and (1.7 ± 0.2) x 10-6.

  • B2 1520+31 detected on Nov 28th, Nov 30th, Dec 1st through 3rd with daily flux declining from (1.2 ± 0.2) x 10-6 to (0.4 ± 0.2) x 10-6.

  • 4C +28.07 was detected every day starting from Nov 28th reaching a peak daily-averaged flux of (1.0 ± 0.2) x 10-6 on Dec 3rd.

  • PKS1244-255, PKS 0537-441, 4C71.07, Mrk 421, J2345-1555, BL Lac, PKS1424-41, PKS2320-005, TXS0059+581, NGC 1275 (3C84), OJ287 detected in one or two days of the week (flux below 1 x 10-6 ).



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- R. Ojha (roopesh.ojha[at]gmail.com) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Wednesday, November 30, 2011

Fermi LAT weekly report N. 181



Covered period: 2011.Nov.21 - 2011.Nov.27

LAT Mission week: 181.57 - 182.57





  • ASPJ134924-113145 (FERMI J1350-1140) detected on November 25 with a daily flux (1.2+/-0.2)e-6. See also ATel #3788. The preliminary best-fit location of the gamma-ray source (R.A.= 207.51 deg, Dec.= -11.68 deg, J2000) has a 95% containment radius of 0.15 deg (statistical errors only) for observations from 20 to 26 November 2011. The source is not present in any Fermi LAT catalog released up to now and there is no previously reported EGRET gamma-ray detection at this location. The nearest flat spectrum radio source is PKS 1346-112.


  • 4C +28.07 bright all week, with a daily flux between (0.9+/-0.2)e-6 and (1.5+/-0.3)e-6.


  • PKS 1424-41 detected on November 21-24 and 27 with a daily flux between (0.6+/-0.2)e-6 and (0.9+/-0.2)e-6.


  • PKS 1510-08 detected on November 21 and 22 with a daily flux of (2.0+/-0.3)e-6 and (1.5+/-0.3)e-6, respectively.


  • PKS 0454-234 detected on November 23-25 with a daily flux between (1.0+/-0.3)e-6 and (1.1+/-0.4)e-6.


  • B3 1343+451 regularly detected starting from November 23 with a daily flux between (0.6+/-0.2)e-6 and (0.9+/-0.2)e-6.


  • Sporadic daily detection of blazars: BL Lacertae (Nov 21), PKS 0537-441 (Nov 23 and 25), 4C +71.07 (Nov 23 and 24), B2 1846+32A (Nov 23 and 24), PKS 1244-255 (Nov 25), B2 1520+31 (Nov 25 and 26), S5 0716+714 (Nov 26), 3C 279 (Nov 27), PKS 1145-071 (Nov 27).



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- E. Torresi (torresi[at]iasfbo.inaf.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Thursday, November 24, 2011

Fermi LAT weekly report N. 180



Covered period: 2011.Nov.14 - 2011.Nov.20

LAT Mission week: 180.57 - 181.57





  • PKS 1510-089 in high state starting from November 15, with a daily flux between (1.3+/-0.2)e-6 and (3.8+/-0.4)e-6.

  • 4C +28.07 bright all the week, with a daily flux between (1.4+/-0.2)e-6 and (1.7+/-0.3)e-6.

  • S5 0836+71 (4C +71.07) detected on November 15, 19, and 20, with a daily flux between (0.8+/-0.2)e-6 and (1.5+/-0.2)e-6.

  • B3 1343+451 detected on November 16, 17, and 18, with a daily flux of (0.4+/-0.2)e-6, (0.9+/-0.3)e-6, and (0.3+/-0.1)e-6, respectively.


  • Sporadic daily detections of blazars: Mkn 421 (Nov 14 and 16), PKS 1124-186 (Nov 14 and 16), PKS 1424-41 (Nov 14), TXS 0059+581 (Nov 15), PKS 2326-502 (Nov 16 and 20), Mkn 501 (Nov 19), PKS 1244-255 (Nov 19).



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- F. D'Ammando (dammando[at]ira.inaf.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Wednesday, November 16, 2011

Fermi LAT weekly report N. 179



Covered period: 2011 November 7-13

LAT Mission week: 179.57 - 180.57





  • Gamma-ray flare of blazar OG 050 (TXS 0529+075, z=1.254) on Nov.7 (see ATel#3750). This FSRQ kept bright all the week (peak daily flux of 1.6E-6 on Nov.9).

  • PKS 1510-08 was in very high state (daily flux 8.2E-6 on Nov.7) fading slowly during the week. 

  • S5 0836+71 (4C +71.07) still bright in the first part of the week (above 2E-6).

  • PKS 0454-234, BL Lac, and 4C +28.07 (B2 0234+28) are the blazars detected above 1E-6 in some days of the week.

  • The sun is detected on Nov. 7 and the Galactic center source is clearly detected above 2E-6 on Nov.9 and Nov.11.

  • HMXRB/MQ LS 5039 and LS I+61 303, SNR IC 443 and W44 detected in some days of the week.

  • Other blazars detected on daily time bins, below 1E-6 are: PKS 1124-186, PMN J2345-1555, PKS 2326-502, Mkn 501, Mkn 421, S5 0716+71, B2 0716+33, 3C 279, B2 1520+31, B3 1343+451, PKS 2320-035, Ton 599 (4C +29.45), TXS 0059+581, PKS 2155-304, OJ 287, PKS 1424-41.



Fluxes are in the unit of photons/cm^2/s above 100 MeV.


Note. All the flux reported above are by the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification. - Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- S. Ciprini (stefano.ciprini[at]asdc.asi.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.



Tuesday, November 8, 2011

Fermi LAT weekly report N.178



Covered period: 2011.Oct.31 - 2011.Nov.06

LAT Mission week: 178.57 - 179.57





  • 4C +28.07 was very bright all week with daily flux above 0.9 X 10-6 and reaching the highest value on Nov. 2 (1.5 X 10-6).

  • PKS 0454-234 showed an increase of luminosity, with daily flux starting at 0.5 X 10-6 and culminating on Nov. 4 at 1.3 X 10-6.

  • B2 0716+33 was detected after Nov. 3 with flux decreasing from 0.8 to 0.3 X 10-6.

  • 4C +71.07 showed a flaring activity on Nov. 1 (daily flux 3.6 X 10-6) and remained active for the rest of the week (flux in the range 1.1-1.5 X 10-6).

  • OJ 287 was detected all week with daily flux in the range 0.8-1.6 X 10-6.

  • Mkn 421 was detected on Nov. 1, 4, and 5 with daily flux of 0.2 X 10-6.

  • B3 1343+451 was detected all week with daily flux in the range 0.4-0.9 X 10-6.

  • PKS 1510-08 was extremely bright all week long, with daily flux above 2.6 X 10-6 and reaching the maximum intensity on Nov. 2 and 3, with flux above 1.0 X 10-5.

  • BL Lac was detected on Oct. 31, and Nov. 1 and 6 with daily flux in the range 1.2-1.9 X 10-6.

  • PKS 2326-502 was detected all week with daily flux in the range 0.4-0.6 X 10-6.

  • PMN J2345-1555 showed a rising daily flux from 0.4 on Oct. 31 to 1.5 X 10-6 on Nov. 4. It faded afterwards reaching 0.6 X 10-6 by the end of the week.

  • Sporadic activity (fluxes below 1.0 X 10-6) observed from PKS 1124-186 (0.6 on Nov. 3 and 0.7 on Nov. 5), B2 1520+31 (0.5 on Nov. 4 and 0.2 on Nov. 5), PKS 0301-243 (0.2 on Nov. 2), PKS 0524-485 (0.4 on Oct. 31), OG 050 (0.6 on Nov. 5), AP Lib (0.8 on Nov. 4), and Mkn 501 (0.4 on Nov. 3)



Fluxes are in the units of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- D. Donato (donato[at]milkyway.gsfc.nasa.gov) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Fermi LAT weekly report N.177



Covered period: 2011.Oct.23 - 2011.Oct.30

LAT Mission week: 177.57 - 178.57





  • PKS 1510-089 continues to be detected all week with daily fluxes around or above 1.5 X 10-6.

  • Mkn 421 quite active during the week reaching a flux of 0.4 X 10-6 on 24th and 28th October

  • 4C +28.07 bright all the week (flux approaching around 1 X 10-6).

  • PKS 0454-234 and S5 0716+714 continue to be detected all week with daily fluxes below 1 X 10-6.

  • OJ 287, PKS 1424+240, B2 1520+31, PKS 1124-186, PKS 2345-16 detected in one or two days of the week (flux below 1 X 10-6 ).



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- S. Cutini (sara.cutini[at]asdc.asi.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Friday, October 28, 2011

Fermi LAT weekly report N.176



Covered period: 2011.Oct.17 - 2011.Oct.23

LAT Mission week: 176.57 - 177.57





  • PKS 1510-08 was in a state of high activity all week, reaching a daily peak flux of (15.9±1.0) x 10-6 on October 19 2011, ATel#3694.


  • PKS 0454-234 detected every day except on October 17 with daily flux reaching a peak of (1.7±0.2) x 10-6 on October 22 2011, ATel#3703.


  • PKS 1124-186 detected on October 10, 11, 12 and 14 with daily flux between (0.3±-0.1) x 10-6 and (0.6±0.1) x 10-6.


  • 4C +28.07 detected every day with daily flux between (0.6±0.3) x 10-6 and (1.2±0.3) x 10-6.


  • PKS 2345-1555 detected on Oct. 17, 18 and 23 with daily flux of (0.4±0.2) x 10-6 and (0.7±0.3) x 10-6.


  • PKS 2326-502 detected on Oct. 17 and 22 with daily flux of (0.7±0.2) x 10-6 and (0.5±0.2) x 10-6.


  • S5 0716+714 (also known as CGRaBS J0721+7120) detected every day reaching a peak flux of (1.5±0.2) x 10-6 and an ATel was issued by Blinov et al, ATel#3700.


  • PKS 0537-441, PKS 1055+01, 1633+382, TXS 1530-131, B2 1510+31, CRATES, J1016+0513, 3C 371 and 2155-304 were detected this week.


  • There was no report for October 21 because the data were unavailable.



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- F. Hungwe (faith.hungwe[at]gmail.com) for generic information related
to this week

- Contact persons on this page for individual sources cited above.




Wednesday, October 19, 2011

Fermi LAT weekly report N. 175



Covered period: 2011.October.10 - 2011.October.16

LAT Mission week: 175.57 - 176.57





  • PKS 1510-08 detected in flaring activity with a high significance
    detection almost every day, with daily flux between
    (1.8+/-0.4)x10-6 and (3.9+/-0.6)x10-6.

  • OJ 287 detected three times this week in a high state, with a peak daily
    flux of (1.0+/-0.2)x10-6 on October 10 (ATel#3680).

  • PKS 0454-234 detected every day with daily flux between (0.4+/-0.1)x10-6 and (1.1+/-0.2)x10-6.

  • PKS 1124-186 detected on October 10, 11, 12 and 14 with daily flux between (0.3+/-0.1)x10-6 and (0.6+/-0.1)x10-6.

  • 4C +28.07 detected on October 11, 13, 14, 15 and 16 with daily flux between (0.9+/-0.2)x10-6 and (1.4+/-0.3)x10-6.

  • PKS 2345-16 detected on Oct. 10 and 12 with daily flux of (0.6+/-0.2)x10-6 and (0.8+/-0.3)x10-6.

  • S5 0716+71 detected on Oct. 11 and 12 with daily flux of (0.5+/-0.1)x10-6.

  • CGRaBS J0948+0022 detected on Oct. 12 and 13 with daily flux of
    (0.5+/-0.2)x10-6 and (0.6+/-0.2)x10-6.

  • BL Lac, 4C +29.45, PKS 0426-380 and PKS 0528+134 detected only once this week with daily flux of (1.2+/-0.2)x10-6, (0.7+/-0.2)x10-6, (0.8+/-0.2)x10-6 and (0.6+/-0.2)x10-6 respectively.

  • Sporadic daily detections of blazars with daily fluxes below 0.5e-6 :
    PKS 1004-217, B3 1343+451, B2 1520+31, PKS 0627-199.



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- L. Escande (escande@cenbg.in2p3.fr) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Tuesday, October 18, 2011

Fermi LAT weekly report N. 174



Covered period: 2011 October 03 - 09

LAT Mission week: 174.57 - 175.57




  • 4C +28.07 detected in a flaring state, reaching a daily peak flux of
    (2.3 ± 0.3) x 10-6 on Oct. 4 (Atel #3670, #3676).

  • OJ 287 was detected throughout the week with increasing flux,
    reaching a daily value of (0.8 ± 0.2) x 10-6 on Oct 7 (ATel #3680).

  • 3C 446 showed a fast flare on Oct. 8, with a daily average value of
    (1.5 ± 0.4) x 10-6 (ATel #3675).

  • PKS 0454-234 was detected multiple times during the week, with daily
    flux levels around 1 x10-6.

  • TeV source PKS 1510-089 started to brighten on Oct. 7, reaching a
    daily flux value of (3.3 ± 0.5) x 10-6 by the end of the week.

  • TeV source NGC 1275 showed a fast outburst on Oct. 6, with a daily
    flux of (0.6 ± 0.2) x -6.

  • Other active extragalactic sources were: S5 0716+71, PKS
    0627-199
    , 4C +38.41.

  • The last six hours on Oct. 5 were impacted by pointed observations
    toward the Earth (nadir).



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- F. Schinzel (schinzel[at]mpifr.de) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Tuesday, October 11, 2011

Fermi LAT weekly report N. 173



Covered period: 2011 September 12-18

LAT Mission week: 173.57 - 174.57





  • PKS 0402-362 was very bright on Sept. 26 (daily flux about 2.2E-6) and decreasing during the rest of the week.

  • 4C +28.07 showed a flare on Sept. 30 when the daily averaged flux observed was about 1E-6.

  • The Sun was detected on daily interval (flux about 0.6E-6) on Sept. 29.

  • The other blazars detected at least in a day of the week (all below 1E-6 in flux) were:
    NGC 1275, Mkn 421, BL Lac, OJ 287, PKS 1830-211, PKS 0537-441, S5 0716+71, PKS 1510-08, PKS 1124-186, Ton 599, TXS 1530-131, 4C +55.17, B2 0716+33, PKS 1424+240, S4 1030+61, PKS 0301-243, PKS 2227-08, B3 1343+451.


Fluxes are in the unit of photons/cm^2/s above 100 MeV.


Note. All the flux reported above are by the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification. - Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- S. Ciprini (stefano.ciprini[at]asdc.asi.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.



Thursday, September 29, 2011

Fermi LAT weekly report N. 172



Covered period: 2011.September.19 - 2011.September.25

LAT Mission week: 172.57 - 173.57





  • PKS 0402-362 detected in flaring activity starting from September 20, with a daily flux between (0.9+/-0.3)e-6 and (6.6+/-0.7)e-6 (ATel #3655).


  • SBS 1150+497 detected on September 19, 20, and 24, with a daily flux between (0.4+/-0.1)e-6 and (0.8+/-0.2)e-6.


  • S5 0716+714 detected on Sept 21 and 22, with a daily flux of (0.4+/-0.1)e-6 and (0.6+/0.1)e-6, respectively.


  • PKS 1510-089 detected on Sept 21 and 22, with a daily flux of (0.9+/-0.2)e-6 and (0.5+/0.2)e-6, respectively.


  • NGC 1275 detected on Sept 23 and 24, with a daily flux of (0.6+/-0.2)e-6 and (0.7+/-0.2)e-6, respectively.


  • Sporadic daily detections of blazars: CRATES J1303+2433 (Sept 19), PKS 2326-502 (Sept 20), PMN J2345-1555 (Sept 20), PKS 0537-441 (Sept 21), Mrk 421 (Sept 23), 3C 279 (Sept 23), PKS 2207-08 (Sept 23), 4C +38.41 (Sept 24).




Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- F. D'Ammando (filippo.dammando[at]ifc.inaf.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Monday, September 26, 2011

Fermi LAT weekly report N. 171

Fermi LAT weekly report N. 171




Covered period: 2011 September 12-18

LAT Mission week: 171.57 - 172.57





  • S5 0716+71 and 4C +01.28 (also known as OL 93, PKS 1055+01) were bright, with a daily flux level around 1E-6 on Sept.12. In particular S5 0716+714 was detected all week.

  • MG1 J050533+0415 (also known as RX J0505.5+0416) showed a flare with daily flux around 1E-6 on Sept.17 (ATel#3573 was issued recently, last August).

  • TXS 0506+056 (also known as ZS 0506+056) detected above 2E-6 in a 6h interval of Sept.12.

  • The other blazars detected at least in a day of the week, with daily flux
    below 1E-6, were:
    Mkn 421, Mkn 501, 3C 279, OJ 287, PKS 2155-304, PKS 1510-09, 4C +38.41, NGC 1275, PKS 1830-211, PMN J2250-2806, PKS 2326-502, PKS 0208-512, B3 1343+451, MG1 J024614+1823 (also known as GB6 J0246+1823), PKS 2345-16, B2 1520+31, and PKS 0402-362.

  • PKS 1510-08, PKS 1830-211, PKS 2326-502 were the brightest blazars based on the weekly-integrated timescale.


Fluxes are in the unit of photons/cm^2/s above 100 MeV.


Note. All the flux reported above are by the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.

For questions and comments please contact:
- S. Ciprini (stefano.ciprini[at]asdc.asi.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.



Monday, September 19, 2011

Fermi LAT weekly report N. 170



Covered period: 2011.Sept.5 - 2011.Sept.11

LAT Mission week: 170.57 - 171.57




Between Sept. 7 at 23:30 UT and Sept. 10 at 23:30 UT, a pointing mode observation of the Sun (RA, Dec: 167.78, +15.24) was performed by the Fermi-LAT after a detection of a bright flare on Sept. 6.

  • Mkn 421 was detected at high significance throughout the week at low flux (~0.2 X 10-6) and showing a flat spectrum (index<~1.7).

  • BMG1 J050533+0415 continued to be detected during the week with flux in the range 0.8-2.0 X 10-6.

  • PKS 2326-502, 4C +38.41, 4C +28.07 were detected in the first few days of the week. The flux of PKS 2326-502 varied in the range 0.5-0.8 X 10-6, while it was stable for 4C +38.41 and 4C +28.07 at the value of 0.9 and 0.6 X 10-6, respectively.

  • Sporadic activity (fluxes below 1.0 X 10-6) observed from PKS 0208-512 (0.6 on Sept. 5), PKS 2155-304 (0.6 on Sept. 6 and 0.2 on Sept. 11), PKS 1424+240 (0.4 on Sept. 6), TXS 1530-131 (0.9 on Sept. 6 and 0.5 on Sept. 7), CRATES J1239+0443 (0.4 on Sept. 8), CGRaBS J0721+7120 (0.3 on Sept. 8 and 0.7 on Sept. 9), B3 1343+451 (0.2 on Sept. 9), PKS 1055+01 (0.4 on Sept. 10), 4C +71.07 (0.9 on Sept. 10 and 0.8 on Sept. 11).



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- D. Donato (donato[at]milkyway.gsfc.nasa.gov) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Wednesday, September 14, 2011

Fermi LAT weekly report N. 169



Covered period: 2011.Aug.29 - 2011.Sep.04

LAT Mission week: 169.57 - 170.57




Between 31 August 12:00 UT and 2 September 12:00 UT a pointing mode observation of the Galactic center was performed by the Fermi-LAT.



  • BMG1 J050533+0415 detected in a very high state on August 29, September 2, and 4 with an increasing daily flux between (0.8+/-0.2)e-6 and (2.0+/-0.3)e-6.


  • TXS 1530-131 (also known as PMN J1532-1319) detected on August 30, August 31, September 1, 2, and 4 with a daily flux between (0.4+/-0.2)e-6 and (0.9+/-0.2)e-6.


  • A gamma-ray flare from CTA 102 was detected on August 29, with a daily flux of (1.1+/-0.4)e-6.


  • S5 0716+714 detected on August 30, September 1, 3, and 4, with a daily flux between (0.3+/-0.1)e-6 and (0.4+/-0.1)e-6.


  • Sporadic daily detections of blazars: CRATES J0809+5218 (Aug 29), B2 0218+35 (Aug 30), BL Lac (Aug 31), PKS 1510-089 (Sept 1), 4C +38.41 (Sept 3).




Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- F. D'Ammando (dammando[at]ifc.inaf.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Friday, September 2, 2011

Fermi LAT weekly report N. 167



Covered period: 2011.Aug.15 - 2011.Aug.21

LAT Mission week: 167.57 - 168.57





  • New gamma ray detection in the vicinity of TXS 1530-131 (PMNJ1532-1319). The source brightened in gamma rays on August 22, 2011, with a daily flux of 1.2 +/- 0.4 X 10-6. (ATel#3573).

  • Gamma ray Flare of MG1 J050533+0415 (CRATES J0505+0415) detected on Aug 19 with a daily flux of 1.2 +/- 0.2 X 10-6. During the six-hour interval from 00:00:00 to 06:00:00 UTC on the same day, the source
    reached a flux of 3.7 +/- 0.9 X 10-6. (See ATel#3579).

  • PKS 1510-089 continues its high gamma ray activity started months ago, being detected for most of the week reaching the flux of 2.6 +/- 0.4 X 10-6 on Aug 17.

  • PKS 1244–255detected between 16 and 21 Aug with a daily flux around 1 X 10-6.

  • NGC1275 detected on Aug 21 with a daily flux of 0.3 +/- 0.1 X 10-6.

  • Sporadic daily detections of blazars (daily flux under 1 X 10-6): PKS 0537–441, B2 0218+35,PKS 1424–41,PKS 0454–234, B3 0650+453 , S4 0646+60 (OH 577.1), RX J0948.8+0022, B3 1343+451, CTA 102, BL LAC, CRATES J0719-3928, B2 1520+31, S5 0716+714,PKS 2142-75, PKS 2326-502, PMN J2345-1555, 3C 279, SDSS J123932.75+044305, 3C 66A.



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

-D. Gasparrini(gasparrini@asdc.asi.it) for generic information related to this week.

- Contact persons on this page for individual sources cited above.





Fermi LAT weekly report N. 166



Covered period: 2011.Aug.07-2011.Aug.14

LAT Mission week: 166.57 - 167.57





Extragalactic sky:


  • PKS 1510-08 was very active all week reaching a maximum on August 12th with a daily flux of 2.4 +/- 0.4 x 10-6 .

  • PKS 1244-255 bright most of the week reaching the threshold of 1.0 +/- 0.2 x 10-6 on August 14th .

  • PMN J2345-1555 detected most of the week with an average flux of about 0.5 x 10-6 .

  • B2 1520+31, 4C +21.35, 3C 279, PKS 0537-441, were detected in one or two days of the week (flux below 1 x 10-6 ).



Galactic sky:


  • Concerning to Atel #3345 we do not confirm the AGILE detection of a new unidentified source AGL 2103+5630



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- S. Cutini (sara.cutini[at]asdc.asi.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Thursday, August 11, 2011

Fermi LAT weekly report N. 165



Covered period: 2011.Aug.01-2011.Aug.07

LAT Mission week: 165.57 - 166.57



The transition to Pass7 data happened on August 1st at 10am. As a consequence the daily run on this day was difficult to analyze. But from August 2nd on, the pipeline ran through normally.

Extragalactic sky:


  • B2 1144+40 reaching (0.4 ± 0.1) e-6 on Aug. 2 and 5, and also detected on Aug. 3.
  • 4C +21.35 detected on the daily run on Aug. 4 but also on a 6 hours run on Aug. 6 reaching (1.1 ± 0.5) e-6.
  • PKS 1510–08 detected on Aug. 5 and 7 reaching a daily flux of (1.3 ± 0.3) e-6 peaking at (2.98e-6 ± 0.85) e-6 in a 6-hours run.
  • 3C 279 detected on Aug. 4 and 7 reaching (0.7 ± 0.2) e-6 that day.
  • CRATES J1239+0443 detected on Aug. 5 and 7 reaching (0.7 ± 0.2) e-6 that day.
  • After a very active period in July, BL Lac was detected on August 2nd with a modest daily flux of (1.0 ± 0.3) e-6.
  • Sporadic detections on on day of the week: B2 1308+32 (Aug. 2), PKS 0537–441 (Aug. 2), B2 0716+33 (Aug. 3), Mkn 421 (Aug. 7).


Solar Activity:

  • The Sun was very active during this week, with several M-class Xray flares. This caused the response of the LAT to be compromised on small time intervals. [All the fluxes indicated in this week's report should be taken with even more caution that usual.]
  • On August 4, following a M9.3 class flare, a gamma-ray source coincident with the Sun was detected, reaching a integrated daily flux of (5.8 ± 0.6) e-6 with a test statistic of 384.




Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.

Note. All the fluxes reported above should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.

- Please acknowledge the LAT team if you use information from this report.

For questions and comments please contact:

- Alice Allafort (allafort@stanford.edu) for generic information related to this week.

- Contact persons on this page for individual sources cited above.

Fermi LAT weekly report N. 164



Covered period: July 25 2011- July 31 2011

LAT Mission week: 164.57 - 165.57





  • PKS 1510-089 (z=0.36) detected with flux greater than 1.0 X 10-6 on July 25, 26, 27, 28, 30 and 31. The flux peaked at (7.3 ± 0.7) X 10 -6 on July 25th.

  • Sources with flux below 1.0 X 10-6: 4C +38.41 (TS=61) flux = (0.7 ± 0.2) X 10-6 July 25, J0505+0415 (TS=51) flux = (0.9 ± 0.3) -6 July 28, PKS 2142-75 (listed as unidentified) flux = (0.5 ± 0.2) X 10 -6 July 28, J0742+5444 (TS=49) flux = (0.2 ± 0.1) X 10-6 July 29, J1033+6051 (TS=41) flux = (0.4 ± 0.2) X 10-6 July 31


Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- M. Dutka (ditko86@gmail.com) for generic information related to this week

- Contact persons on this page for individual sources cited above.





Monday, July 25, 2011

Fermi LAT weekly report N. 163



Covered period: 2011 July 18-24

LAT Mission week: 163.57 - 164.57





  • PKS 1510-08, 4C 38.41 (B2 1633+38), and BL Lacertae were above the daily flux level of 1E-6 in some days of the week. PKS 1510-08 reached a flux level of about 6E-6 in the last 6h interval of July 24.

  • The other blazars of the week, detected at least one time in the daily analysis, are: S5 0716+71, B2 1520+31, PKS 0537-441, PKS 1424-41, PKS 2155-304, PKS 2326-502, PKS 2142-75, S4 1749+70, PKS 0454-234, TXS 2247-283 (PMN J2250-2806), PKS 0301-243, 4C 55.17, 4C 38.41, PMN J2345-1555.

  • Other blazars detected on the weekly timescale with an averaged weekly flux above 0.4e-6 are: 3C 279, PKS 1830-211, 4C 28.07, PKS 1622-253.


Fluxes are in the unit of photons/cm^2/s above 100 MeV.


Note. All the flux reported above are by the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification. - Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- S. Ciprini (stefano.ciprini[at]pg.infn.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.



Wednesday, July 13, 2011

Fermi LAT weekly report N. 161



Covered period: 2011.Jul.04 - 2011.Jul.10

LAT Mission week: 161.57 - 162.57






  • An increasing gamma-ray activity from PKS 1510-089 was detected since July 1, 2011. On July 4 the source reached a gamma-ray flux (E > 100 MeV) of (8.3+/-1.0)e-6 in the daily time scale and a flux of (12.0+/-1.9)e-6 in the 6-hour interval starting at 06:00 UT of the same day (ATel#3473).
    A decrease of the activity was detected in the following days (July 5-8) with a daily flux between (1.5+/-0.6)e-6 and (2.1+/-0.5)e-6.


  • A gamma-ray flare from the flat spectrum radio quasar CGRaBS J1849+6705 was detected on July 6, 2011, with a daily flux of (2.5+/-0.3)e-6 (ATel#3478).


  • A gamma-ray flare from the flat spectrum radio quasar PKS 0235-618 was detected on July 10, with a daily flux of (1.1+/-0.2)e-6.


  • 4C +38.41 detected bright all the week, with a daily flux between (1.2+/-0.2)e-6 and (2.2+/-0.4)e-6.


  • BL Lac detected between July 4 and 9, with a decreasing flux from (1.3+/-0.3)e-6 to (0.5+/-0.2)e-6.


  • SBS 1150+497 detected between July 4 and 6, with a daily flux between (0.3+/-0.1)e-6 and (0.7+/-0.2)e-6.


  • B2 1520+31 detected on July 4, 7, and 8, with a daily flux between
    (0.4+/-0.2)e-6 and (0.7+/-0.2)e-6.


  • S5 0716+714 detected on July 6, 9 and 10, with a daily flux between (0.6+/-0.2)e-6 and (0.9+/-0.2)e-6.


  • Sporadic daily detections of blazars: PKS 0208-512 (July 4 and 5),
    PMN J2345-1555 (July 4 and 7), PKS 0537-441 (July 5), Mrk 421 (July 7), PKS 1622-253 (July 7), PKS 0250-225 (July 10).




Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- F. D'Ammando (dammando[at]ifc.inaf.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Tuesday, July 12, 2011

Fermi LAT weekly report N.160



Covered period: 2011.Jun.27 - 2011.Jul.03

LAT Mission week: 160.57 - 161.57





  • On June 28 BL Lacertae shows an unusual gamma-ray spectrum with a photon number power-law index of 1.70 +/-0.15 (ATel #3462) in agreement with the TeV flare detection from VERITAS.

  • PKS 1510-089 continues its high activity reaching a daily flux around (4.2 +/- 0.7)X 10-6 on Jul 03.


  • 3C 279 and 4C 38.41 (B2 1633+38) bright for most of this week (daily flux approaching and around 1 X 10-6).


  • B2 1520+31, PKS 0537-441, PKS 0250–225, PMN J2345–1555,PKS 1424–41, PKS 0521–36, MKN 421 detected in one or two days of the week (flux below 1 X 10-6 ).




Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- D. Gasparrini (gasparrini[at]asdc.asi.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Fermi LAT weekly report N.159



Covered period: 2011.Jun.20 - 2011.Jun.26

LAT Mission week: 159.57 - 160.57





  • CRATES J1239+0443 detected also this week with a low daily flux in the range 0.4-0.5 X 10-6 on Jun. 20 and 22 and flaring with flux (1.1 +/- 0.4) X 10-6 on Jun. 23.

  • B2 1520+31 detected from Jun. 22 to Jun. 26 with daily flux in the range 0.5-1.2 X 10-6.

  • 4C +38.41 detected from Jun. 24 to Jun. 26 with daily flux in the range 0.9-1.6 X 10-6.

  • BL Lac detected on Jun. 23 and 24 with daily flux in the range 0.7-1.1 X 10-6.

  • The radio-loud narrow-line Sy1 galaxy SBS 0846+513 was detected on Jun. 21 with daily flux of (0.8+/-0.2) X 10-6 (see ATel#3452).

  • Sporadic activity (fluxes above 1.0 X 10-6) observed from CGRaBS J0948+0022 (1.1 on Jun. 20), 3C 279 (1.1 on Jun. 26), PKS 1510-08 (3.6 on Jun. 26).

  • Sporadic activity (fluxes below 1.0 X 10-6) observed from 4C +28.07 (0.5 on Jun. 21), PKS 0250-225 (0.7 on Jun. 23), CGRaBS J0721+7120 (0.6 on Jun. 20), CRATES J0742+5444 (0.5 on Jun. 20), CGRaBS J1849+6705 (0.7 on Jun. 20), PKS 1055+01 (0.4 on Jun. 20), 1150+497 (0.4 on Jun. 24), PKS 1502+106 (0.8 on Jun. 23), CGRaBS J1849+6705 (0.4 on Jun. 22), PKS 2032+107 (0.5 on Jun. 24), PMN J2345-1555 (0.8 on Jun. 20).



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- D. Donato (donato[at]milkyway.gsfc.nasa.gov) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Tuesday, June 28, 2011

Fermi LAT weekly report N. 158



Covered period: 2011.Jun.13 - 2011.Jun.19

LAT Mission week: 158.57 - 159.57





  • FSRQs MG1 J123931+0443 (z=1.762) and GB6 J0742+5444 ( z=0.72) both active during the week and both flaring on June 19 (daily flux 1.1 +/- 0.3 X 10-6 and daily flux 1.0±0.2 X 10-6 respectively). See ATel#3445.

  • 3C 279 bright during this week (flux approaching and around 1 X 10-6).

  • PMN J0948+0022 detected on June 19 with daily flux around 1.4 X 10-6 .

  • PKS 1830-211, 4C +38.41, B2 1520+31, PKS 0537-441, PKS 2326–502, PMN J2345-1555, BL Lac detected in one or two days of the week (flux below 1 X 10-6 ).



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- D. Gasparrini (gasparrini@asdc.asi.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Wednesday, June 15, 2011

Fermi LAT weekly report N. 157



Covered period: 2011 June 6-12

LAT Mission week: 157.57 - 158.57




  • Bright gamma-ray flaring emission from the Sun on June 7 with an increase of two orders of magnitude with respect to quiet solar disk emission. See ATel#3417.

  • Flare of flat spectrum radio quasar PKS 1622-253 on June 7 (daily flux (2.0 ± 0.3) E-6). See ATel#3424

  • Flare of the narrow-line Seyfert-1 galaxy PMN J0948+0022 (daily flux (1.5 ± 0.3) E-6). See ATel#3429.

  • Other bright blazars in daily intervals of the week: CTA 102, BL Lacertae, S5 0716+71, 3C 279, B2 1520+31, OX 169.

  • Other daily-detected blazars during the week: PMN J2345–1555, PKS 2155-304, 3C 454.3, Mkn 501, Mkn 421, PKS 2326-502, PKS 1244-255, S4 1749+70, PKS 2326-502, PKS 0537-441, GB6 J0742+5444, 4C 28.07, 4C 21.35, S5 0836+71, S4 1849+67.


Fluxes are in the unit of photons/cm^2/s above 100 MeV.


Note. All the flux reported above are by the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification. - Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- S. Ciprini (stefano.ciprini[at]asdc.asi.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.



Tuesday, June 14, 2011

Fermi LAT weekly report N. 156



Covered period: 2011.May.30 - 2011.June.05

LAT Mission week: 156.57 - 157.57





  • PMN J1123-6417 was detected in flaring state on May 30, with a daily flux of (1.4+/-0.4)e-6 (ATel #3394). PMN J1123-6417 is a likely AGN of uncertain type at a Galactic latitude, b=-3 deg. This association is confirmed also by Mahony et al. (2010) using the AT20G survey catalog. No redshift is known for this object.


  • A gamma-ray flare from the high-redshift (z=2.07) blazar PKS 0528+134 was detected on June 5, 2011, with a daily flux of (1.1+/-0.4)e-6 (ATel #3412).


  • PKS 1622-253 detected in flaring state on June 4 and 5, with a daily flux of (1.1+/-0.3)e-6 and (1.0+/-0.3)e-6, respectively. This high activity reached a peak flux of (2.0+/-0.3)e-6 on June 7 and has continued in the following days, as reported in the ATel #3424.


  • CTA 102 detected very bright on 31 May, with a daily flux of (2.5+/-0.5)e-6.


  • PMN J2345-1555 detected in high state between 30 May and 3 June, with a decreasing flux from (1.0+/-0.2)e-6 to (0.7+/-0.2)e-6.


  • 4C +38.41 detected bright on May 30, May 31, and June 2, with daily flux between 1.1e-6 and 1.3e-6.


  • B2 1520+31 detected in high state on June 4 and 5, with a daily flux of (1.0+/-0.3)e-6 and (1.4+/-0.4)e-6, respectively.


  • NGC 1275 detected in high state on May 31, June 1 and June 4 with a daily flux between (0.9+/-0.3)e-6 and (0.3+/-0.1)e-6.


  • BL Lac detected on May 30, May 31 and June 4, with a daily flux between 0.6e-6 and 0.8e-6.


  • 3C 279 detected bright on June 2 and 3, with a daily flux between 1.0e-6 and 1.2e-6.


  • Sporadic daily detections of blazars: CGRaBS J1849+6705 (June 1), CRATES J0850+4854 (June 2), PKS 1424-41 (June 2), PKS 2052-47 (June 2).



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- F. D'Ammando (dammando[at]ifc.inaf.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Thursday, May 26, 2011



Covered period: 2011.May.15 - 2011.May.22

LAT Mission week: 154.57 - 155.57





  • BL Lac is detected in a high state all week reaching a flux of 1.4e-6 on 20th May; see ATel #3368 and the follow up Atels in which optical/X-ray brightening has been reported (#3371, #3375 and #3377).

  • 4C +38.41 is very active all week reaching a flux of (1.5 ± 0.3) e-6.

  • 4C 49.22 is in high state all week, with a flux of (1.3± 0.3)e-6 on 17th May.

  • CTA 102 detected on 18th and 19th May.

  • 4C +21.35, PKS 0521-36, PKS 0537-441, PMN J2345-1555 and 3C279, 3C66A are detected during the week.

  • Referring to the AGILE ATel (#3357) on AGL 2302-3251, we do not confirm the detection in the soft energy band (100MeV-400MeV).





Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- S. Cutini (sara.cutini[at]asdc.asi.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Fermi LAT weekly report N. 153



Covered period: 2011 May 9-15

LAT Mission week: 153.57-154.57





Highlights of this week:

Detection of gamma ray activity from blazar PKS 0208-512 with a flux of (1.1 +/- 0.3)E-6. This was reported in ATel #3338

CTA 102 brightened on May 11, up to a flux of (1.6 ± 0.4) E-6, which is above the level reported in a recent telegram from May 3 (ATel #3320)

Blazar SBS 1150+497 (also known as as 4C 49.22, OM 484) became active this week after a one month hiatus following a short flare on April 15 (ATEL #3313). Back then there were two possible AGN counterparts to the gamma-ray source, but follow-up observations have revealed a contemporaneous increase in flux at GeV, X-ray and NIR (ATEL#3317) wavelengths, which confirms the identification of the Fermi source with SBS 1150+497. A peak flux of (3.4 +/- 0.6)E-6 was observed by Fermi LAT during a 12hr interval on May 15, but since then the source has been detected at a more moderate flux of aprox. 1 E-6.

4C +38.41 remains bright this week, with daily fluxes consistently around 1.3 E-6 for most days and as high as ( 2.5 +/- 0.4) E-6 on May 15

Other daily detections of blazars this week: PKS 1244-255, 3C 279, 4C +28.07, PKS 0537-441, Mkn 421, PKS 2155-304, CRATES J1239+0443, 3C 454.3, BL Lac, PMN J2345-1555

Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the flux reported above are by the Fermi LAT Automated Science Processing (ASP) analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification. - Please acknowledge the LAT team if you use information from this report.

For questions and comments please contact:

- A. Szostek (aszostek[at]slac.stanford.edu) and L. Reyes (lcreyes [at] uchicago.edu) for generic information related to this week

- Contact persons on this page for individual sources cited above.

Fermi LAT weekly report N. 152



Covered period: 2011 May 2-8

LAT Mission week: 152.57-153.57





Highlights of this week:

4C +38.41 became active this week, with a flux hovering around 10^-6 at the beginning of the week and then peaking on May 8 at the level of (2.1 +/- 0.3) E-6. The flare was reported in ATel #3333. High state in NIR was also reported in ATel #3335.

A gamma-ray flare from the blazar S5 1803+78 was detected on May 2 and May 3, at a level of (1.1 +/- 0.2)E-6. The flare was short-lived since on May 4 the source was not detected by Fermi LAT. Optical follow-up observations, also on May 4, found the source at an average brightness (ATEL#3323).

Another short flare detected by Fermi LAT this week was attributed to blazar PKS 1424-41, which on May 5 reached a flux of (1.1 +/- 0.3)E-6, representing more than an order of magnitude increase over the average flux reported in the first Fermi-LAT catalog. The observed flux is comparable with a previous flare observed on April 23, 2010 (Atel #2583).

Other daily detections of blazars this week: PKS 1244-255, PKS 0537-441, 4C +28.07, 4C +21.35, 3C 279, B2 1520+31, PMN J2345-1555, CRATES J0742+5444, PKS 0208-512


Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the flux reported above are by the Fermi LAT Automated Science Processing (ASP) analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification. - Please acknowledge the LAT team if you use information from this report.

For questions and comments please contact:

- A. Szostek (aszostek[at]slac.stanford.edu) and L. Reyes (lcreyes [at] uchicago.edu) for generic information related to this week

- Contact persons on this page for individual sources cited above.

Monday, May 9, 2011

Fermi LAT weekly report N. 151





Covered period: 2011 Apr.25-May.1

LAT Mission week: 151.57 - 152.57








  • Flare of CTA 102 (daily flux (1.4+/-0.3)E-6 on April 29, 2011. This is
    the first firm daily detection too since the beginning of the mission. See ATel#3320


  • Flare of PKS 0521-36 on April 25 (daily flux (1.6 ± 0.4) E-6).


  • PKS 1510-08 active during the week around 1E-6.


  • NGC 1275 detected on April 30, 2011.


  • Other daily detection of blazars during the week: PKS 1244-255, PKS 1510-08, 3C 279, B2 1520+31, PMN J2345-1555, 3C 454.3, PKS 0537–441, 4C 38.41, B2 0321+33B, PKS 1502+106, B2 1633+38, PKS 0906+01, PKS 1424-41, 4C 28.07 (B2 0234+28), GB6 J0742+5444, PMN J0531-4827



Fluxes are in the unit of photons/cm^2/s above 100 MeV.



Note. All the flux reported above are by the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification. - Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- S. Ciprini (stefano.ciprini[at]pg.infn.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Sunday, May 8, 2011

Fermi LAT weekly report N. 150




Covered period: 2011 Apr.18-Apr.24

LAT Mission week: 150.57 - 151.57





  • Crab Nebula fading since peak on Apr. 14, but still above average for the pulsar + nebula until Apr. 19. The TOO observation continued from the previous week until Apr. 19. This reduced daily exposure on some portions of the sky during that time.


  • Detection of a flare from a new LAT source near S4 1150+49 (4C 49.22) with GB6 J1152+4939 (BZQ J1152+4939) just outside the error circle. See ATel 3313.


  • Flare associated with PKS 1622–253 to (1.6 +/- 0.4) E-6 on April 18, 2011. Previously active in October 2009 (ATel 2231).


  • PKS 0521–36 active this week reaching a flux of (1.8 ± 0.4) e-6 on Apr. 23.


  • B2 1520+31 flared to (1.4 +/- 0.4) e-6 on Apr. 22.


  • Some activity throughout the week from 3C 279 reaching 1.1 ± 0.3 E-6 on Apr. 21.


  • Other daily detection of blazars during the week:  PKS 1510–089, 3C 454.3.



Fluxes are in the unit of photons/cm^2/s above 100 MeV.


Note. All the flux reported above are by the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification. - Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- E. Hays (elizabeth.a.hays[at]nasa.gov) for generic information related to this week

- Contact persons on this page for individual sources cited above.

Wednesday, April 20, 2011

Fermi LAT weekly report N. 149



Covered period: 2011.April.11 - 2011.April.17

LAT Mission week: 149.57 - 150.57





  • A renewed increase of the gamma-ray activity from a source positionally consistent with the Crab Nebula was detected by Fermi-LAT starting from the period April 9-11, 2011 (ATel #3276).
    Fermi has interrupted all-sky scanning mode between 2011-04-12 16:47 UTC and 2011-04-19 15:49:43 UTC for a dedicated pointing observation of the Crab Nebula. The ATel #3276 promptly issued at the beginning of this new outburst phase triggered also early ToO observations by Swift (ATel #3279) and Chandra (ATel #3283).
    A subsequent extreme gamma-ray outburst was detected in the period April 14-16 (see ATel #3284), with a peak flux of (21.4 +/- 0.7) x10^-6 ph/cm2/sec (statistical errors only) on April 16, confirmed also by AGILE observations (ATel #3286).


  • 3C 279 was detected in a very high state on Apr. 17, with daily flux of (3.3+/-1.0)e-6.


  • Sporadic daily detections of blazars: PMN J2345-1555 (Apr. 11), PKS 1510-08 (Apr. 11), S5 0716+714 (Apr. 14), CRATES J0850+4854 (Apr. 14).



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- F. D'Ammando (dammando[at]ifc.inaf.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Sunday, April 17, 2011

Fermi LAT weekly report N. 148



Covered period: 2011 Apr.4-Apr.10 

LAT Mission week: 148.57 - 149.57






  • The latter half of this week saw the start of increased activity from the Crab Nebula with an increase in flux by a factor of >2, see ATel#3726. On the 9th, the daily flux reached (4.7 +/- 0.6) e-6 with a 6 hour flux of (5.7 +/- 0.7) e-6.



  • 3C454.3 was detected throughout the week with an average daily flux of 1.3e-6.



  • PKS 1622-253 exhibited a flare this week, detected on 5 days with an average daily flux of 1.2e-6 and reached a high flux of (1.5 +/- 0.4) e-6 on the 10th.



  • 1510-089 was detected at a high flux of (2.1 +/- 1.0) e-6 on the 10th.



  • PWN J2345-1555 was detected most days this week with an average daily flux of 0.7e-6



  • B2 2308+34 and 4C+38.41 were both detected on 3 days during the first half of the week with average daily fluxes of 1.2e-6 and 0.9e-6, respectively, while PKS 1520+31 was seen on 3 days in the second half of the week at an average daily flux of 0.9e-6.



  • Sporadic activity from 4C+01.01, 3C273, 3C279, Mrk421, PKS 2155-304, 1ES2322-409, PKS 0537-441, PKS 1502+106, PKS 1424+41 and CRATES J0742+5444.





Fluxes are in the units of photons/cm^2/s above 100 MeV.

Note. All the fluxes reported above are by the ASP analysis and should be considered preliminary and should not be used for publication; however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification. - Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- A. Cannon (annacannon1984@gmail.com) for generic information related to this week

- Contact persons on this page for individual sources cited above.


Thursday, April 7, 2011

Fermi LAT weekly report N. 147



Covered period: 2011 Mar.28-Apr3 

LAT Mission week: 147.57 - 148.57




  • Flare of S5 0836+71 (4C 71.07, z=2.218) on April 3, with daily flux (1.2+/-0.3)E-6. ATel#3260 issued. A high-z, luminous gamma-ray MeV-peaked blazar (being detected in the past by INTEGRAL, COMPTEL, EGRET), interesting for its intervening system, intrinsic absorbing environment and peculiarly-structured jet.

  • Flare of nearby blazar OX 169 (S3 2141+17, z=0.210) on March 30 (daily flux 1.2+/-0.3)E-6.

  • 3C 454.3 faded below the daily flux level of 1E-6 during the week.

  • Mkn 421 and PKS 0537-441 were rather active and detected all days (Mkn 421 below 0.4E-6, PKS 0537-441 reaching 0.7E-6 on April 3).

  • Other daily detection of blazars below daily flux level of 1E-6:
    RX J1509.7+5556, PKS 2155-304, B2 1520+31, PMN J2345-1555, 1ES 2322-409, 4C 14.23, 3C 66A, GB6
    J0742+5444
    .

  • GRB 110328B of March 28 is not detectable by the LAT using the standard 0.1-300 GeV dataset. Detectable if the lower energy threshold is reduced to 50 MeV
    (GCN 11835 issued).


Fluxes are in the units of photons/cm^2/s above 100 MeV.

Note. All the fluxes reported above are by the ASP analysis and should be considered preliminary and should not be used for publication; however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification. - Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- S. Ciprini (stefano.ciprini[at]asdc.asi.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.


Tuesday, April 5, 2011

Fermi LAT weekly report N.146



Covered period: 2011.Mar.21 - 2011.Mar.27

LAT Mission week: 146.57 - 147.57






  • 3C 454 detected between March 21 and 27 with daily flux in the range 1.8-5.3 X 10-6.

  • Mkr 421 detected almost all week with daily flux in the range 0.1-0.8 X 10-6.

  • Mkr 501 detected on March 24 and 25 with daily flux of 0.1 X 10-6 and 0.2 X 10-6, respectively.

  • CRATES J0742+5444 (GB6 J0742+5444) detected between March 23 and 26 with daily flux in the range 0.4-0.8 X 10-6.

  • Sporadic activity observed from PKS 0250-225, S5 0716+71, 4C +38.41. All fluxes below 1.0 X 10-6.


  • The high state of Cygnus X-3 on March 22 was reported by Fermi collaboration in Atel#3233. Furthermore, a TOO pointed mode observation for Cyg X-3 was performed by Fermi between 25 and 28 March.




Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

G. pivato (giovanna.pivato[at]pd.infn.it) for generic information related to this week

Contact persons on this page for individual sources cited above.




Monday, April 4, 2011

Fermi LAT weekly report N. 145



Covered period: 2011.Mar.14 - 2011.Mar.20

LAT Mission week: 145.57 - 146.57





  • 4C +38.41 Detected with daily flux greater than 1.0 X 10-6 on March 14,15 and 19. The peak flux was (2.1 +/- 0.4) X 10-6 on March 15th. Swift observations of this source were performed on March 16 to March 21

  • 3C454.3 Detected everyday during the week with flux between 3.0-4.0 X 10-6.

  • Sources with flux below 1.0 X 10-6 - 4C+21.35 flux = (0.8 +/- 0.3) X 10-6; PKS 0537-441 flux = (0.6 +/- 0.2) X 10-6 March 16, (0.5 +/- 0.2) X 10-6 March 18, (0.4 +/- 0.1) March 20; CRATES J0742+5444 flux = (0.9 +/- 0.2) X 10-6 March 17, (0.7 +/- 0.2) X 10-6 March 18, (0.4 +/- 0.2) X 10-6 March 20; B2 2308+34 flux = (0.3 +/- 0.1) X 10-6 March 18; CGRaBS J1033+6051 flux = (0.5 +/- 0.2) X 10-6 March 18



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- Michael Dutka (ditko86@gmail.com) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Monday, February 28, 2011

Fermi LAT weekly report N.142



Covered period: 2011.Feb.21 - 2011.Feb.27

LAT Mission week: 142.57 - 143.57





  • Mkn 421 detected on Feb. 24 and 27 with daily flux in the range 0.3-0.5 X 10-6.

  • PKS 0537-441 detected on Feb. 21 and 24 with daily flux in the range 0.8-1.1 X 10-6.

  • PKS 1622-253 detected on Feb. 25 and 27 with daily flux in the range 1.0-1.8 X 10-6.

  • S4 1749+70 detected in 4 days after Feb. 24 with daily flux in the range 0.5-1.3 X 10-6.

  • 4C 21.35 detected on Feb. 25 and 27 with daily flux in the range 0.7-1.0 X 10-6.

  • 3C 454.3 was moderately bright and constant all week, with daily flux between 3.1 and 4.0 X 10-6.

  • Sporadic activity (fluxes above 1.0 X 10-6) observed from 1510-089 (1.4 X 10-6 on Feb. 25), CRATES J0742+5444 (1.2 X 10-6 on Feb. 26, ATel#3196), B2 2308+34 (1.1 X 10-6 on Feb. 21).

  • Sporadic activity (fluxes below 1.0 X 10-6) observed from PKS 1124-186 (0.4 X 10-6 on Feb. 27), PKS 0716+714 (0.5 X 10-6 on Feb. 26), AP Lib (0.4 X 10-6 on Feb. 21, ATel#3187 on the 6-hr run flare), 3C 279 (0.8 X 10-6 on Feb. 26), B3 1708+433 (0.9 X 10-6 on Feb. 26)



Fluxes are in the unit of photons/cm2/s above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.
- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- D. Donato (donato[at]milkyway.gsfc.nasa.gov) for generic information related to this week

- Contact persons on this page for individual sources cited above.




Wednesday, February 23, 2011

Fermi LAT weekly report N.141



Covered period: 2011.Feb.14 – 2011.Feb.20


LAT Mission week: 141.57 - 142.57




  • The BL Lac object CGRaBS 1 748+7005 (also known as S4 1749+70) was detected in flaring state on Feb. 15, with a daily flux of 0.7 × 10–6 (ATel #3171)
  • 3C 454.3 was detected all week long (daily flux between 2.4 and 4.0 × 10–6).


  • PKS 0521-36 was seen at flux = 1.1 × 10–6 on Feb. 16 and 18.


  • PKS 2155-304 was detected throughout the week and in high state with a peak occurring on Feb. 18 flux = 1.7 × 10–6


  • PKS 1622-253 was detected with flux = 0.9 × 10–6 on Feb. 19.


  • CGRaBS J1748+7005, GB6 J0742+5444, PKS 2326-502 were detected almost all week.


  • Sporadic activity observed from Mrk 421, 4C +38.41, B3 1708+433, PKS 0537–441. All fluxes below 1.0 × 10–6.



Fluxes are in the unit of photons cm–2s–1 above 100 MeV. All errors are statistical only.



Note. All the fluxes reported above are from the ASP analysis and should be considered preliminary and should not be used for publication, however they are indicative of the flux range and the current status of a source. Source association is done on the basis of source location, considering spatial coincidence only, and it is not indicative of an identification.

- Please acknowledge the LAT team if you use information from this report.


For questions and comments please contact:

- S. Buson (sara.buson[at]pd.infn.it) for generic information related to this week

- Contact persons on this page for individual sources cited above.