Tuesday, December 31, 2013

Fermi LAT weekly report N. 289


Covered period: 2013.Dec.16 – 2013.Dec.22
LAT Mission week: 289.57 - 290.57

  • 3C 279 persisted in the high stated observed the previous week and reached a daily flux of  6× 10–6  on 2013 December 20 (ATel #5680). This is the highest flux observed by the LAT since the start of the Fermi mission. The day of the peak the source showed a daily hard photon index of 1.80 +/- 0.06.
  • PKS 1730–13 detected in flaring state: the blazar reached a daily averaged flux of  1 × 10–6 on 2013 December 21 and of 1.5 × 10–6 on 2013 December 22.
  • PKS 2326–502 was detected almost all week with daily flux above 2 × 10–6.
  • PKS 0426–380 was detected all week long (daily flux between 0.4 × 10–6 and 1.1 × 10–6).
  • PKS 1424–418 was detected almost all week with a daily flux ranging between 0.4 × 10–6 and 0.8 × 10–6.
  • 4C +21.35 was detected throughout the week and reached a peak flux = 1 × 10–6  on 2013 December 20.
  • Other blazars detected in some days of the week with a daily flux lower than 1 × 10–6 : PKS 1244-255, PMN J2345-1555, PKS 0454-234, VER 0521+211, S5 1044+71, Mrk 421, B3 1343+451, CTA 102, 4C +28.07, NGC 1275, B2 1520+31, PKS 2142-75, 4C +55.17, PKS 2023-07, PKS 0716+71, B2 2308+34.
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. Buson (sara.buson[at]pd.infn.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.

Fermi LAT weekly report N. 288


Covered period: 2013.Dec.9 – 2013.Dec.15
LAT Mission week: 288.57 - 289.57

  • FERMI J0623-3351 was detected for the first time in gamma rays on 2013 December 14.  The source showed a flux of 0.1 × 10–6 and a particularly hard gamma-ray spectrum with a photon index of 1.9+/-0.1 (ATel #5668). Follow-up observations indicated that the gamma-ray source is probably associated with the blazar PMN J0623-3350 (ATel #5684).
  • 3C 279 was detected all week with daily flux above 1 × 10–6. The highest flux reached during this week was 3.2 × 10–6 and was observed on 2013 December 10.
  • PKS 2326–502 was detected all week; the highest daily flux of 2.1 × 10–6 was recorded on 2013 December 15.
  • PKS 1510-089 was detected all week with a daily flux ranging between 0.4 × 10–6 and 0.9 × 10–6.
  • PKS 0426–380 was detected all week long (daily flux between 0.1 × 10–6 and 0.6 × 10–6).
  • 4C +21.35 was detected throughout the week and reached a peak flux = 1 × 10–6  on 2013 December 11.
  • Other blazars detected in some days of the week with a daily flux lower than 1 × 10–6 : Mrk 421, PKS 1424–418, PKS 0454-234, S5 1044+71, PKS 0208–512, NGC 1275, B3 1343+451, CTA 102, PKS 1244-255, VER 0521+211, B2 1520+31, PKS 0524–485, PKS 2142-75, 4C +28.07.
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.

Friday, December 6, 2013

Fermi LAT weekly report N. 286


Covered period: 2013.Nov.24 - 2013.Dec.1
LAT Mission week: 286.57 - 287.57

  • PKS 2326-502 was detected all week with a daily averaged flux between 0.4 x 10-6 and 1.1 x 10-6.
  • 3C 279 was detected all week reaching a daily flux of 1.5 x 10-6 on November 26.
  • PKS 1424–41 was detected all week with a daily averaged flux below 1 x 10-6.
  • BL Lacertae was not in high-state in gamma rays despite It reached the historical maximum in optcial band (ATel #5597). It was detected twice with flux of 0.3 x 10-6 and 0.4 x 10-6 (November 25 and 27).
  • VER 0521+211 was detected few times during the week reaching a daily flux of 1.5 x 10-6 on November 30.
  • Fermi J1725-3726 (short high-energy galactic transient) was detected on December 1 with a flux of 1.3 x 10-5 in the time interval 11:22 - 11:27 UTC (ATel #5625).
  • Other blazars detected in some days of the week with a daily flux lower than about 1 x 10-6: NGC 1275, PKS 1454-354 , 4C +21.35 (PG 1222+216), Mrk 421, PKS 1510–08, 4C +01.02 (PKS 0106+01), B3 1343+451, 3C 454.3, B2 1520+31 and PKS 1244-255.

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.


Wednesday, November 27, 2013

Fermi LAT weekly report N. 285


Covered period : 2013 November 18-24
LAT Mission week : 285.57 - 286.57

  • PKS 2326-502 was detected all week with a daily averaged flux between 0.7 x 10-6 and 1.2 x 10-6.
  • PKS 2032+107 was seen three times during the second part of the week with flux values around 0.8 x 10-6.
  • 4C +21.35 was detected during the first two days of the week with daily flux values respectively of 0.9x 10-6 and 0.8 x 10-6.
  • 4C +38.41 was detected during the second part of the week at about 0.8 x 10-6 on November 20 and at 0.5 x 10-6 on November 22.
  • BL Lacertae was detected twice with flux of 0.8 x 10-6 (November 21 and 22).
  • Other blazars detected in some days of the week with a daily flux lower than about 0.7 x 10-6: NGC 1275, PKS 0426–380, PKS 1244–255, PKS 1454–354, PKS 1510–08, B2 1520+31. The only exception was 3C 454.3 detected on November 18 with daily flux of 0.9 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:
- Elisa Antolini (elisa.antolini@fisica.unipg.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Friday, November 22, 2013

Fermi LAT Weekly report N. 284


Covered period: 2013 November 11-17
LAT Mission week: 284.57 - 285.57

  • PKS 1510-08 in high state during the first part of the week and peaking on November 14 with daily flux 2.5E-6.
  • PKS 2326-502 in high state during the week and peaking on November 14 with daily flux 2E-6.
  • 3C 454.3 detected during the week with daily flux oscillating around a value of 1.2E-6.
  • CTA 102 is increasing during the last part of the week (daily flux about 1.3 on November 16 and 17).
  • 4C +21.35 (PG 1222+216) flaring at 1.2E-6. on November 15.
  • Other blazars detected in some days of the week with a daily flux lower than about 0.7E-6: Mkn 421,  Mkn 501, 3C 66A, NGC 1275, PKS 0454-234, PKS 0426-380, 4C +01.02 (PKS 0106+01, OC 012), 4C +47.44 (S4 1636+47), 4C +38.41 (B2 1633+38), B2 2319+31, BL Lacertae, S5 1044+71, PMN J2345-1555, PKS 0208-512 , PKS 1424-41.
  • High mass gamma-ray binary 1FGL J1018.6-5856> detected in high state with daily flux 2.4E-6 on November 11.

Fluxes are in the unit of photons/cm^2/s above 100 MeV. All uncertainties are statistical only.
  
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, November 14, 2013

Fermi LAT Weekly Report N. 283


Covered period: 2013.November.04 - 2013.November.10
LAT Mission week: 283.57 - 284.57

  • PKS 2326-502 was detected all week with a daily averaged flux between (0.7±0.2) X 10-6 and (1.4±0.2) X 10-6.
  • 3C 454.3 was detected on November 4 and November 8, with a daily averaged flux between (1.1±0.3) X 10-6 and (1.6±0.4) X 10-6.
  • 4C +21.35 was detected all week with a daily averaged flux between (0.5±0.2) X 10-6 and (1.5±0.3) X 10-6.
  • PKS 1510-08 was detected on November 6 with a daily averaged flux of (1.1±0.4) X 10-6
  • GRB 131108A was detected on November 8 with a daily averaged flux of (12.2±1.2) X 10-6. See GCN #15464
  • Sporadic activity (daily fluxes below 10-6): Mrk 421, NGC 1274, PKS 0454-234, PKS 0426-380, PKS 2325-408, PMN J2345-1555, S5 1044+71, VER J0521+211.
  • 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:
    - Roopesh Ojha (Roopesh.Ojha[at]gmail.com) for generic information related to this week
    - Contact persons on this page for individual sources cited above.


Monday, November 11, 2013

Fermi LAT Weekly Report N. 282


Covered period: 2013.October.28 - 2013.November.3
LAT Mission week: 282.57 - 283.57

  • Fermi ended its dedicated pointing observation of the Sun on October 29.
  • PKS 1510-089 detected on October 28, 29, 30, 31, and November 1 and 3, with a daily flux between (2.9±0.3) X 10-6 and (0.9±0.3) X 10-6.
  • 4C +21.35 detected on October 28, and November 1, and 3, with a daily flux between (1.0±0.3) X 10-6 and (0.3±0.1) X 10-6.
  • PKS 2326-502 detected on October 30 and November 1, 2, and 3, with a daily flux between (2.1±0.3) X 10-6 and (0.8±0.2) X 10-6, respectively.
  • 3C 454.3 detected on October 30 and November 1, 2, and 3, with a daily flux between (1.3±0.4) X 10-6 and (0.8±0.3) X 10-6, respectively.
  • Sporadic activity (daily fluxes below 10-6): PKS 1329-049 (October 29, 30), MG1 J123931+0443 (October 29), Mkn 421 (October 30, November 2, 3), CTA 102 (October 30, November 3), PKS 0454-234 (November 1, 3), BL Lacertae (November 1), S4 1144+40 (November 2, 3), PMN J2345-1555 (November 2, 3), NGC 1275 (November 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:
    - W. McConville (wmcconvi[at]umd.edu) for generic information related to this week
    - Contact persons on this page for individual sources cited above.


Wednesday, October 30, 2013

Fermi LAT Weekly report N. 281


Covered period: 2013.October.21 - 2013.October.27
LAT Mission week: 281.57 - 282.57

  • PKS 0454-234 detected on October 21, 23, 24, 25, and 27, with a daily flux between (1.4±0.2) X 10-6 and (0.5±0.2) X 10-6.
  • PKS 1510-089 detected on October 23, 24, 25, 26, and 27, with a daily flux between (3.3±0.4) X 10-6 and (1.7±0.4) X 10-6.
  • 4C +21.35 detected on October 25, 26, and 27, with a daily flux between (1.2±0.3) X 10-6 and (0.9±0.2) X 10-6.
  • VER J0521+21 detected on October 21 and 25, with a daily flux of (2.5±0.3) X 10-6 and (1.4±0.4) X 10-6, respectively.
  • PKS 2326-502 detected on October 23 and 24, with a daily flux of (1.0±0.3) X 10-6 and (0.9±0.2) X 10-6, respectively.
  • 3C 454.3 detected on October 24 and 25, with a daily flux of (1.3±0.3) X 10-6 and (1.6±0.3) X 10-6, respectively.
  • Sporadic activity (daily fluxes below 10-6): NGC 1275 (October 21), B3 2308+34 (October 23), B3 1343+451 (October 24), S5 0716+71 (October 25), PKS 1424-418 (October 26).
  • Fermi has interrupted all-sky scanning mode on 2013-10-28 16:23:34 for a dedicated pointing observation of the Sun.
  • 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) and M. Orienti (orienti[at]ira.inaf.it) for generic information related to this week
    - Contact persons on this page for individual sources cited above.


Monday, October 28, 2013

Fermi LAT Weekly report N. 280


Covered period: 2013 October 14-20
LAT Mission week: 280.57 - 281.57


  • The TeV blazar VER J0521+211 has been significantly detected since the beginning of the week on daily timescales and it exhibited an active state reaching the highest daily flux of 1.0 +/- 0.3 on 2013 October 14 (ATel #5472).
  • B2 2308+34 in active state. On 2013 October 15 and 16 it reached the daily flux of 1.0+/- 0.2 (ATel #5477). This was the first Fermi LAT detection of the object on daily timescales since mid-2011.
  • On 2013 October 17 the Crab Nebula has been observed in flaring state showing a daily flux of 9.7+/-0.7 (ATel #5485). Consequently, Fermi interrupted all-sky scanning mode to maximize the exposure toward the Crab Nebula. The pointing mode lasted until 2013 October 21. 
  • PKS 1510–08 present most days of the week. The highest daily flux of 3.2 +/- 0.4 was recorded on 2013 October 14.
  • Other blazars detected at daily fluxes between 0.6 - 0.9 : PKS 1424–418, 4C +38.41, NGC 1275, PKS 0426-380, 3C 454.3
  • Sporadic daily detections of blazars (fluxes below 1): Mrk 421, CTA 102, PKS 0454-234, PKS 2142-75, B3 1343+451, BL Lac, PKS 1222+216, PKS 0716+714, 4C +01.02, Mkn 501.

Fluxes are in the unit of 10-6 photons/cm^2/s above 100 MeV. All uncertainties are statistical only.

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. Buson (sara.buson[at]pd.infn.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.



Monday, October 21, 2013

Fermi LAT Weekly report N. 279


Covered period: 2013 October 7-13
LAT Mission week: 279.57 - 279.57

  • The BL Lac object 1ES 2322-409 (z=0.17359, 2FGL J2324.7-4042) detected in flaring state in the days from October 7 to October 10 (see ATel#5457).  The source reached its historical maximum on October 8 with daily flux of 1.5E-6. Another AGN (candidate FSRQ) PKS 2325-408 ( 2FGL J2327.9-4037) can be also a possible association for the LAT flaring source. It is located at about a half degree from 1ES 2322-409.
  • PKS 1510-08 in high active state during the week and peaking on October 13 with daily flux 3.7E-6.
  • 4C +21.35 (PG 1222+21) and 4C +38.41 (B2 1633+38) both in high state during the week with daily flux between about 1.2E-6 and 2E-6.
  • PKS 2326-502 flaring during the week peaking on October 10 with daily flux 1.6E-6.   
  • 3C 454.3 detected during the week with daily flux oscillating around a value of 1.2E-6.
  • NGC 1275 (Perseus A) detected some days of the week peaking on October 9 with daily flux 1.2E-6. 
  • 4C +01.02 (PKS 0106+01) detected on October 9 and 12 with a daily flux level of about 1E-6.
  • BL Lacertae detected on October 12 with a daily flux level of 1E-6.  
  • Other blazars of the week: PKS 0426-380, CTA 102, PKS 0454-234, 3C 279, PKS 1424-41, S4 1849+67, Mkn 421, PKS 2142-75, PMN J2145-3357, PMN J2345-1555, PKS 1622-253, 4C +55.17 (OK 591, S4 0954+55), B2 2308+34.

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


Wednesday, October 9, 2013

Fermi LAT Weekly Report N. 278


Covered period: 2013.Sep.30 - 2013.Oct.06
LAT Mission week: 278.57 - 279.57

  • A bright flare from the FSRQ PKS 1622-253 was detected on October 6 with a daily averaged flux of (3.0 +/- 0.3) which is 22 times its daily averaged flux from the 2FGL catalog (see ATel #5452).
  • PKS 1510-08 was detected all week with a daily averaged flux between (1.9 +/- 0.3) and (2.7 +/- 0.4).
  • 4C +38.41 was detected all week with a daily averaged flux between (1.3 +/- 0.3) and (1.7 +/- 0.3).
  • 3C 454.3 was detected all week with a daily averaged flux between (0.7 +/- 0.2) and (2.1 +/- 0.4).
  • 4C +21.35 was detected all week with a daily averaged flux between (0.5 +/- 0.2) and (1.7 +/- 0.4).
  • PKS 2326-502 was detected all week with a daily averaged flux between (1.2 +/- 0.2) and (2.2 +/- 0.3).
  • Sporadic daily detections of blazars (fluxes below 1): Mkn 421, NGC 1275, PKS B1424-418, S5 1217+71, PKS 0426-380, PKS 0454–234, S4 0218+35, S5 1044+71, S5 1217+71, PMN J2145-3357, PKS 1424+240.

Fluxes are in the unit of 10-6 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:
- B. Carpenter (carpbr01[at]gmail.com) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Tuesday, October 8, 2013

Fermi LAT Weekly report N. 277


Covered period: 2013 September 23-29
LAT Mission week: 277.57 - 278.57

  • 3C 454.3 in flaring state. The source reached a daily peak flux of about 3.4E-6 on September 24 decreasing to a level of about 1.5E-6 the following days of the week. 
  • 4C +21.35 (PG 1222+21) flaring with daily flux level of about 2.3E-6 on September 29.
  • PKS 1510-08 in high state at the beginning of the week (daily flux about 2.8E-6 on September 23).
  • Rapid flare of BL Lacertae detected with daily flux about 1.4E-6 on September 25.
  • Further bright blazars of the week, showing daily flux in the range 1.0-1.5E-6 are: NRAO 676 (on September 23),  4C +38.41 (B2 1633+38),  PKS 2326-502, and PKS 0426-380.
  • Other blazars of the week: NGC 1275 (Per A), PKS 0454-234, S4 1849+67, S5 1044+71, Mkn 421Mkn 501, PKS 2155-304, PKS 1424-41, 3C 279, PMN J2145-3357.
  • Gamma-ray high-mass binary star 1FGL J1018.6-5856 detected with daily flux 1.8E.6 on September 28.

    
Fluxes are in the unit of photons/cm^2/s above 100 MeV. All uncertainties are statistical only.
  
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 30, 2013

Fermi LAT Weekly Report N. 276


Covered period: 2013.Sep.16 - 2013.Sep.22
LAT Mission week: 276.57 - 277.57

  • PKS 1510-089 dominated the gamma-ray sky this week with daily fluxes in the range (1.5 - 6.4).  A Swift ToO was triggered and the observed fluxes indicate that this blazar was also flaring in the X-ray band (see http://www.swift.psu.edu/monitoring/source.php?source=PKS1510-089 for more information). We thank the Swift team for their support.
  • 3C 454.3, 4C +38.41 and PKS 0454-234 also deserve notable mention, with recurrent daily detections and fluxes above 1.
  • Other sources detected several days of the week (with fluxes below 1): Mkn 421, 3C 279, PKS 0426-380, NGC 1275, PKS 2326-502
  • Sporadic activity (detected only one or two days,  fluxes below 1): 4C +21.35, PKS 1424-418, PKS 0250-225, PKS 2155-304 , CTA 102,  4C +55.17.

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. Reyes (lreyes04[at]calpoly.edu) for generic information related to this week

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

Monday, September 23, 2013

Fermi LAT Weekly Report N. 275


Covered period: 2013.Sep.09 - 2013.Sep.15
LAT Mission week: 275.57 - 276.57

  • A bright flare has been detected from 4C +01.02  on 2013 September 14 and reported in ATel #5394.
  • 4C +38.41 observed most days of the week with a daily flux above 1.
  • PKS 1510–08 has been strongly detected all week reaching a peak daily average flux of (2.1 +/- 0.6) on September 12.
  • Sources detected most days of the week with a daily average flux 
  • between 0.2 and 1.2 are: PKS 0454-234, NGC 1275, PKS 2326–502, Mkn 421.
  • PKS 1424–418, S4 1144+40, PKS 1222+216, PKS 0426-380.
  • Sporadic activity observed from the blazars NRAO 190, 3C 454.3, B3 1343+451, B3 0227+403 and PKS 1424+240.
Fluxes are in the unit of 10-6 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. Buson (buson[at]pd.infn.it) for generic information related to this week

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

Thursday, September 12, 2013

Fermi LAT Weekly Report N. 274


Covered period: 2013.Sep.02 - 2013.Sep.08
LAT Mission week: 274.57 - 275.57

  • The quasar 4C+21.35 (PKS 1222+21) was strongly detected from September 2 through September 6 reaching a peak daily averaged flux of (4.1 +/- 0.5) on September 4. Its activity triggered a GCN Notice. This is the strongest flare from this source since a period of activity ending June 2010.
  • PKS 1510-08 was detected on September 4, 5, 7 and 8 with a daily averaged flux between (1.8 +/- 0.5) and (3.7 +/- 0.7).
  • 4C +38.41 (B2 1633+38) was detected on September, 3, 4, 5, 6, and 8 with a daily averaged flux between (0.7 +/- 0.2) and (1.3 +/- 0.2).
  • PKS 2326-502 was detected on September 4 and 7 with a daily averaged flux of (1.1 +/- 0.3) and (0.8 +/- 0.2) respectively.
  • 3C 454.3 was detected on September 5 and 8 with a daily averaged flux of (0.6 +/- 0.2) and (1.0 +/- 0.3) respectively.
  • Sporadic daily detections of blazars (fluxes below 1X10-6): PKS 1424-41, NGC 1275, Mrk 421, PKS 0454-234, PKS 0426-380.

Fluxes are in the unit of 10-6 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, September 4, 2013

Fermi LAT Weekly Report N. 273


Covered period: 2013.Aug.26 - 2013.Sep.01
LAT Mission week: 273.57 - 274.57

  • A bright flare from the narrow-line Seyfert galaxy 1H 0323+342 was detected for the first time on August 28 with a daily averaged flux of (1.0 +/- 0.3) which is 29 times its daily averaged flux from the 2FGL catalog (see ATel #5344). It peaked on August 30 with a daily averaged flux of (2.0 +/- 0.4) which is 56 times the 2FGL flux.
  • PKS 1510-08 was detected all week with a daily averaged flux between (1.4 +/- 0.4) and (2.2 +/- 0.5).
  • 4C +38.41 was detected all week with a daily averaged flux between (1.2 +/- 0.3) and (2.2 +/- 0.4).
  • 3C 454.3 was detected all week with a daily averaged flux between (0.6 +/- 0.2) and (1.3 +/- 0.4).
  • Sporadic daily detections of blazars (fluxes below 1X10-6): Mkn 421, NGC 1275, PKS B1424-418, PKS 2155-304, PKS 0426-380.

Fluxes are in the unit of 10-6 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:
- B. Carpenter (carpbr01[at]gmail.com) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Monday, August 26, 2013

Fermi LAT Weekly Report N. 272


Covered period: 2013.Aug.19 - 2013.Aug.25
LAT Mission week: 272.57 - 273.57

  • PKS0920-39 (RA: 140.548 Dec: -39.7036) was detected with daily averaged gamma-ray flux (0.9 +/- 0.2) on August 23, 2013. This source is not included in any Fermi LAT catalog. Regarding this detection, ATel #5326 was posted.
  • 4C +38.41 was detected all week with a daily averaged flux between (0.6 +/- 0.2) and (1.8 +/- 0.4).
  • 3C 454.3 was detected 5 days in this week with a daily averaged flux between (0.6 +/- 0.2) and (1.1 +/- 0.3).
  • PKS B1424–418 was detected 3 days in this week with a daily averaged flux between (0.5 +/- 0.2) and (1.1 +/- 0.3).
  • PKS B1510-08 was detected 3 days in this week with a daily averaged flux between (1.2 +/- 0.3) and (2.9 +/- 0.5).
  • BL Lac was detected 2 days in this week with a daily averaged flux at (0.4 +/- 0.2).
  • Sporadic daily detections of blazars: PKS 0454-234, Mkn 421, NGC 1275, OX 169, CTA 102, B2 2319+31.

Fluxes are in the unit of 10-6 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:
- Y. Tanaka (ytanaka[at]hep01.hepl.hiroshima-u.ac.jp) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Saturday, August 24, 2013

Fermi LAT Weekly report N. 271


Covered period: 2013 August 12-18
LAT Mission week: 271.57 - 272.57

  • Star Nova Delphini 2013 detected in gamma-ray band with a flux level of (0.33+/-0.08)E-6 on August 18. See ATel#5302.
  • Bright blazars of the week, showing daily flux oscillating around 1E-6 flux level are: PKS 1424-413C 454.3, 4C +38.41 (B2 1633+38) and PKS 1510-08.
  • Radiogalaxy NGC 1275 (Perseus A) detected with increasing flux during the week and approaching 1E-6 level.
  • Blazar CTA 102  bright and detected almost all the week with daily flux around 0.7E-6.
  • Other blazars detected in some days of the week (with daily flux lower than about 0.5E-6): Mkn 421, BL Lacertae, PKS 2320-035, PKS 2326-502PMN J1506+0814 (detected on August 14),  PKS 0426-380PKS 2155-304NRAO 190 (detected on August 15), PKS 1016-311 (detected on August 16), B2 1520+31, 1ES 1959+650, B2 2319+31 (detected on August 18).

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


Wednesday, August 14, 2013

Fermi LAT weekly report N. 270


Covered period: 2013.August.05 - 2013.August.11
LAT Mission week: 270.57 - 271.57

  • Blazar 4C +38.41 (B2 1633+38) was bright all week despite decreased flux with respect the week before. It was detected every day with a daily averaged flux between (1.3 ± 0.3) and (2.0 ± 0.3).
  • Mkn 421 was detected nearly every day, with averaged flux values < (0.6 ± 0.2).
  • 4C +21.35 (PKS 1222+21) was detected three times this week, with a decreasing flux value from (1.0 ± 0.2) on August 5, to (0.6 ± 0.2) recorded on August 11.
  • PKS 1510-08 was detected every day except on August 9, with averaged daily fluxes always greater than (1.0 ± 0.2), reaching its peak flux value of (1.6 ± 0.4) on August 8.
  • PKS 1424-41 was detected the last 4 days of the week with flux values always below 0.9.
  • The blazars detected sporadically with flux values equal or below 0.8 were: PKS 1124-186, PKS 2326-502, NGC 1275, and PKS 2155-304. The only exception was PKS 0805-07, detected on August 8 with flux value of (1.1 ± 0.4).

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. Antolini (elisa.antolini@fisica.unipg.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Wednesday, August 7, 2013

Fermi LAT Weekly Report N. 269


Covered period: 2013 July 29 - August 4
LAT Mission week: 269.57 - 270.57

  • Blazar 4C +38.41 (B2 1633+38) always in high state, detected all week with a daily averaged flux between (1.9 ± 0.2) and (2.2 ± 0.3).
  • PKS 0440-00 in high state on the last days of July, reaching a maximum on July 30 with a daily averaged flux of (3.2 ± 0.4).
  • PKS 0754+241 had a short flare (6-12 hours) between July 31 and August 1, reaching a flux of (2.5 ± 0.7) at its peak.
  • PKS 1424-41 was detected on August 2 with a daily averaged flux of (1.5 ± 0.3) and August 3 (0.9 ± 0.3).
  • PKS 0454-234 was detected on July 29, July 31 and August 1, with daily averaged flux between (0.5 ± 0.2) and (0.9 ± 0.3) reached on August 1.
  • 3C 279 detected on July 29, July 30, July 31 and August 3 with daily averaged flux between (0.7 ± 0.3) and (1.0 ± 0.3).
  • Sporadic daily detections of blazars during the week, with daily flux value equal or below 0.7 are: PMN J2345-1555, Mkn 421, PKS 0426-380, NGC 1275, B2 2319+31, 3C 454.3, and 4C +01.02.

Fluxes are in the unit of photons/cm^2/s above 100 MeV. All uncertainties are statistical only.
  
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:
- D. Bastieri (bastieri[at]pd.infn.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Monday, August 5, 2013

Fermi LAT Weekly Report N. 268


Covered period: 2013.July.22 - 2013.July.28
LAT Mission week: 268.57 - 269.57

  • Blazar4C +38.41 (B2 1633+38) is strongly active during the whole week reaching the highest flux detected by Fermi on July 27 (daily flux 2.9 +/- 0.3 X 10-6). See ATel#5232.
  • B2 2319+31 was about 27 times the average flux of 2FGL on July 26 (daily flux 0.7 +/- 0.2 X 10-6).See ATel#5231.
  • 4C +21.35 is strongly active all week (daily flux approaching 1.8 X 10-6 on July 25).
  • PKS 1424-418 is bright in the first part of this week (daily flux around 1.8 X 10-6 on July 22).
  • PKS 0426-38, PMN J2345–1555, PKS 0454-234 are detected almost every day (daily flux below 1.0 X 10-6).
  • PKS 0440-00 (NRAO 190) is bright in the last part of this week (daily flux reached 1.8+/- 0.2 X 10-6 on July 25).
  • Sporadic daily detections of some sources during the week: 4C +01.02, 3C 279, MKN 421, NGC 1275, 3C 454.3,B2 1520+31 (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.

Wednesday, July 24, 2013

Fermi LAT weekly report N. 267


Covered period: 2013.July.15 - 2013.July.21
LAT Mission week: 267.57 - 268.57

  • Blazar 4C +38.41 (B2 1633+38) is still in high state, detected all week with a daily averaged flux between (0.9 ± 0.2) and (2.0 ± 0.3).
  • PKS 1424-41 was detected all week except on July 19 and 21, with daily averaged flux between (1.1 ± 0.3) and (1.8 ± 0.4).
  • PKS 0426–380 was detected all week: from July 15 to July 17 with daily averaged flux of (0.5 ± 0.2); and then brightening from July 18 to July 21, with daily averaged flux between (0.8 ± 0.2) and (1.2 ± 0.2).
  • 3C 454.3 was detected on July 15, July 20 and July 21, with daily averaged flux between(0.9 ± 0.3) and (1.0 ± 0.3).
  • 3C 279 was detected on July 15 with daily averaged flux of (1.0 ± 0.2).
  • Sporadic daily detections of blazars during the week, with daily flux value equal or below 0.6 are: PKS 0454–234, PMN J2345-1555, Mkn 421, PKS 0440–00, PKS 0521-36, NGC 1275, B2 1520+31, CGRaBS J0211+1051, PKS 0805–07, 4C +01.02, OJ 287.

Fluxes are in the unit of 10-6 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:
- A. Allafort (allafort@stanford.edu) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Monday, July 15, 2013

Fermi LAT Weekly Report N. 266


Covered period: 2013.Jul.8 - 2013.Jul.14
LAT Mission week: 266.57 - 267.57

  • A high latitude unidentified source was detected and found to be positionally coincident with spectrally hard FSRQ TXS 1100+122 (ATel #5202).
  • PKS 1424-41 was detected all week with daily averaged fluxes between (1.4 +/- 0.2) and (2.0 +/- 0.6).
  • 4C +38.41 was detected all week with daily averaged fluxes between (0.9 +/- 0.2) and (1.8 +/- 0.3).
  • 3C 454.3 was detected on Jul 11 with a peak daily averaged flux of (1.3 +/- 0.3).
  • PKS 1510-089 was detected on Jul 9 with a peak daily averaged flux of (1.8 +/- 0.4).
  • Sporadic daily detections of blazars (fluxes below 1): PKS 0454-234, Mkn 421, PKS 1124-186, 4C +01.02, NGC 1275, PKS 0426-380, B3 1343+451, 1H 0323+342, PMNJ 2345-1555, B2 1520+31, B2 2319+31, 4C +55.17 (S4 0954+55, OK591), PKS 0507+17

Fluxes are in the unit of 10-6 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:
- Roopesh Ojha (Roopesh.Ojha[at]gmail.com) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Tuesday, July 9, 2013

Fermi LAT Weekly Report N. 265


Covered period: 2013.Jul.1 - 2013.Jul.7
LAT Mission week: 265.57 - 266.57

  • PKS B1424-418 was detected all week with daily averaged flux between (0.9 +/- 0.3) and (1.4 +/- 0.4).
  • 4C +38.41 was detected all week with a daily averaged flux between (0.9 +/- 0.2) and (1.2 +/- 0.5).
  • 3C 454.3 was detected between Jul. 3 and 6 with peak daily averaged flux of (1.3 +/- 0.3).
  • PKS 1510-08 was detected on Jul. 4 and 5 with daily averaged flux of (1.0 +/- 0.3).
  • The LAT also detected GRB 130702A, see GCN 14675
  • Sporadic daily detections of blazars (fluxes below 1): Mkn 421, 3C 279, PKS 1124-186, PKS 2326-502, B2 2319+31, PKS 0308-611, PMN J2345-1555, PKS 0805-07, PKS 0521-36, S5 0716+71.

Fluxes are in the unit of 10-6 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:
- B. Carpenter (carpbr01[at]gmail.com) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Tuesday, July 2, 2013

Fermi LAT Weekly report N. 264


Covered period: 2013 June 24-30
LAT Mission week: 264.57 - 265.57

  • Blazars PKS 1424-41 and 4C +38.41 (B2 1633+38) still in a high activity state, both showing a daily flux level above 1.0E-6 throughout the week.
  • NRAO 190 (PKS 0440–00) has reached the higher daily flux of 1.9E-6 on June 24 showing high state until June 26; afterwards the source has not been detected, on daily time scale.
  • Further bright blazars detected in some days of the week with daily flux level above about 0.7E-6 are: PKS 0426-380, CTA 102 and 3C 454.3.
  • Other blazars detected, also in a single day, during the week, with daily flux value equal or below 0.6E-6 are: Mkn 421, BL Lac, 3C 279, PKS 2326-502, PKS 0454–234, PKS 1124–186, B2 2234+28A and B3 1343+451.
  
Fluxes are in the unit of photons/cm^2/s above 100 MeV. All uncertainties are statistical only.
  
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. Buson (buson[at]pd.infn.it) for generic information related to this week
- Contact persons on this page for individual sources cited above.

    Tuesday, June 25, 2013

    Fermi LAT Weekly report N. 263


    Covered period: 2013 June 17-23
    LAT Mission week: 263.57 - 264.57

    • Blazars PKS 1424-41 and 4C +38.41 (B2 1633+38) are continuing to show a high activity state, 
    • NRAO 190 (PKS 0440-00) is showing high activity since June 21 (ATel #5156) and has reached the highest daily flux on June 22 (flux=1.3E-6). This FSRQ was detected in a similar high gamma-ray state in May 2009 (ATel #2049) and, since then, has remained almost steady showing low gamma-ray activity.
    • Sporadic detection of PKS 1510–08 (with daily flux as high as 1.4E-6 on June 18).
    • PKS 1424-418 and 4C +38.41 (B2 1633+38) persisting bright with daily flux around 1E-6 almost every day of the week.
    • Blazar CTA 102 still present some days of the week with daily flux level ranging between 0.7 and 1.8E-6.
    • Further bright blazars detected some days of the week with daily flux level between about 0.7E-6 and 1E-6 are PKS 0454–234 and PKS 0426-380.
    • Other blazars detected, also sporadically, during the week, with daily flux below 1E-6 level are: Mkn 421, PKS 1124–186, PKS 0716+714,  PKS 2155-304, S4 1030+61.
    • NGC 1275 showing sporadic activity.
    Fluxes are in the unit of photons/cm^2/s above 100 MeV. All uncertainties are statistical only.
      
      
    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. Buson (sarabuson[at]pd.infn.it) for generic information related to this week
    - Contact persons on this page for individual sources cited above.

    Tuesday, June 18, 2013

    Fermi LAT Weekly report N. 262


    Covered period: 2013 June 10-16
    LAT Mission week: 262.57 - 263.57

    • Blazars PKS 1424-41 and 4C +38.41 (B2 1633+38) are continuing to show a high activity state, both peaking at a daily flux level of 1.4E-6, on June 11 and 15 the former, on June 13 the latter.
    • Blazar CTA 102 is increasing in activity during the week (peaking at daily flux level of 1.6E-6 on June 16).
    • Radiogalaxy NGC 1275 (Perseus A) is active and detected all the days of the week, with daily flux around 0.5E-6.
    • Further bright blazars detected in some days of the week with daily flux level between about 0.7E-6 and 1E-6 are: PKS 0426-380, PKS 0454-234, PKS 0507+17, PKS 2320-035, PKS 1510-08, 3C 454.3.
    • Other blazars detected, also in a single day, during the week, with daily flux value equal or below 0.6E-6 are: Mkn 421, PKS 2320-035, S5 1044+71, S5 0716+71, B3 1343+451, PMN J2345-1555, PMN J2250-2806, PKS 0521-36, PKS 2155-304.

      
    Fluxes are in the unit of photons/cm^2/s above 100 MeV. All uncertainties are statistical only.
      
    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, June 10, 2013

    Fermi LAT Weekly report N. 261


    Covered period: 2013 June 3-9
    LAT Mission week: 261.57 - 262.57

    • CTA 102 is continuing to show a high activity state, peaking at a daily flux level of 1.5E-6 both on June 6 and 9.
    • PKS 1424-41 is bright and peaking at a daily flux level of 1.3E-6 on June 9.
    • Further bright blazars detected in some days of the week with daily flux level between about 0.6E-6 and 1E-6 are:
      4C +38.41 (B2 1633+38), NGC 1275, PKS 0426-380, PKS 0454-234, PKS 1510-08 and PKS 1124-186.
    • Other blazars detected, also in a single day during the week, with daily flux value equal or below 0.5E-6 are:
      S5 0716+71, S5 1217+71, S5 1044+71, NRAO 190 (PKS 0440-00), 3C 454.3, Mkn 421, PKS 0301-243, PMN J2250-2806, PMN J2345-1555, PMN J1433-2132.
        

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

    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.


    Fermi LAT weekly report N. 260


    Covered period: 2013 May 26 - Jun 2
    LAT Mission week: 259.57 - 260.57


    • CTA 102 is active during the week peaking at 1.9E-6 on May 28th and 1.5E-6 on May 31st.
    • PKS 1424-41 is bright and active with daily flux of 1.6E-6 on June 1st.
    • PKS 0426-380 is active during the week and peaking at 1.3E-6 on May 31st.
    • Other blazars detected, also sporadically, during the week, with daily flux below 1E-6 level are: Mkn 421, PKS 0454–234, S5 0716+71, PMN J2345-1555, PMN J0017–0512, S5 1044+71, NRAO 190, 3C 454.3 and 4C +38.41 (B2 1633+382).
    Fluxes are in the unit of photons/cm^2/s above 100 MeV. All uncertainties are statistical only.
    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:
    - D. Bastieri (denis.bastieri[at]pd.infn.it) for generic information related to this week
    - Contact persons on this page for individual sources cited above.


    Wednesday, May 29, 2013

    Fermi LAT weekly report N. 259


    Covered period : 2013.May 20 - 2013.May 26
    LAT Mission week: 259.57 - 260.57

    • The source PKS 1424-41 was seen all week in a bright state with flux values greater than 1 X 10-6, while the blazar PKS 0426-380 was detected in a high state only on May 20.
    • The FSRQ PMN J0017–0512 was detected on May 24, with daily flux of 1.1 X 10-6; the day after the flux increased its value up to 2.0 X 10-6, 52 times the mean flux value recorded in 2FGL. This detection was eligible for an ATel that was published on May 27.See ATel#5089.
    • PKS 1124-186 was detected three times with daily flux of about 0.5-0.6 X 10-6 and PKS 0454–234 was seen after May 22 with fluxes always lower than 1 X 10-6.
    • The sources significantly detected sporadically were PKS 0507+17, S5 1044+71, PKS 2326–502, PMN J2345-1555, 4C 38.41 and S5 0716+71.
    • LS I+61 303 was detected on May 26 with flux value greater than 2 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:
    - E. Antolini (elisa.antolini@fisica.unipg.it) or D. Bastieri (denis.bastieri@pd.infn.it) for generic information related to this week.
    - Contact persons on this page for individual sources cited above.


    Monday, May 27, 2013

    Fermi LAT weekly report N. 258


    Covered period: 2013 May 13 - May 19
    LAT Mission week: 258.57 - 259.57

    • The LAT detected a huge solar activity in coincidence with the X3.2 Solar Flare of May 13th and with the X1.2 flare of May 15th
    • The LAT detected also an activity toward the location of GRB130518, see GCN 14675
    • PKS 1424-41 is bright and active with daily flux of 1.8E-6 on May 13th and 2.1E-6 on May 16th.
    • PKS 0507+17 is active during the week and peaking at 2E-6 on May 19.
    • Blazars 4C +38.41 (B2 1633+382) detected in some days of the week in bright state (daily flux level above or around 1e-6).
    • Galactic plane TeV source VER J0521+211 flaring on May 15th at 1.8E-6.
    • Some activity detected by a source positionally coincident with TXS 0500+640 (GB6 J0505+6406), detected on May 16th and 17th between 0.3 and 0.5E-6
    • Detected also NGC 1275 on May 17th.
    • Other blazars detected, also sporadically, during the week, with daily flux below 1E-6 level are: Mkn 421, PKS 0426-380, S5 0716+71, CRATES J1435+2021, OX 169, PMN J2345-1555, B3 1343+451, 3C 454.3 and TXS 1700+685 (RX J1700.1+6830).

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

    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:
    - D. Bastieri (denis.bastieri[at]pd.infn.it) for generic information related to this week
    - Contact persons on this page for individual sources cited above.



    Thursday, May 23, 2013

    Fermi LAT weekly report N. 257


    Covered period: 2013.May.6 - 2013.May.12
    LAT Mission week: 257.57 - 258.57

    • PKS 1424-41 is quite bright and active with daily flux about 2 X 10-6 during the week.
    • PKS 0507+17 continues to be in high state with daily flux about 1 X 10-6 during the week and peaking at 1.6 X 10-6 on May 8th.
    • PKS 1510-089 continues to be detected with daily fluxes around or above 1 X 10-6 .
    • MRK 421, PKS 0426-380, 3C66A, PMN J2345-1555, 4C +38.41 and NGC 1275 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.

    Monday, May 6, 2013

    Fermi LAT weekly report N. 256


    Covered period: 2013 April 29 - May 5
    LAT Mission week: 256.57 - 257.57

    • PKS 1424-41 is bright and active with daily flux above 2E-6 during the week and peaking at  3.1E-6 on April 30.
    • PKS 0507+17 is in high state with daily flux above 1.5E-6 during the week and peaking at 2E-6 on April 29 and May 2.
    • Blazars PMN J2345-1555, 4C +38.41 (B2 1633+382),  PKS 1510-08, and PKS 2345-16 are detected in some days of the week in bright state (daily flux level above or around 1e-6).
    • Other blazars detected, also sporadically, during the week, with daily flux below 1E-6 level are: Mkn 421, PKS 0426-380, PKS 0454-234, S5 0716+71, OJ 287, PKS 2326-502, PKS 2320-035, GB6 J1700+6830, S5 1044+71, 3C 454.3, Ton 599 and CTA 102.

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

    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, April 30, 2013

    Fermi LAT Weekly Report N. 255


    Covered period: 2013.Apr.22 - 2013.Apr.28
    LAT Mission week: 255.57 - 256.57

    • PKS 2320-035 was detected on Apr. 25 and 28 with peak daily averaged flux of (1.1 +/- 0.3) which is 18 times its daily average flux from the 2FGL catalog (see ATel #5022).
    • PMN J2345-1555 was detected all week with daily averaged flux between (0.9 +/- 0.2) and (2.4 +/- 0.4).
    • PKS B1424-418 was detected all week with daily averaged flux between (1.8 +/- 0.3) and (2.5 +/- 0.4).
    • PKS 0507+17 was detected all week with a daily averaged flux between (1.4 +/- 0.3) and (4.7 +/- 0.5). The peak on Apr. 25 triggered a GCN Notice (see GCN#1366987519)
    • PKS 0426-380 was detected on Apr. 24 with daily averaged flux of (1.1 +/- 0.3).
    • S5 0716+71 was detected Apr. 22, 23 and 28 with a daily averaged flux between (0.6 +/- 0.2) and (1.0 +/- 0.2).
    • 4C +38.41 was detected all week with a daily averaged flux between (0.7 +/- 0.2) and (1.4 +/- 0.5).
    • PKS 1510-08 was detected on Apr. 24 with daily averaged flux of (1.2 +/- 0.3).
    • On Apr. 27 The LAT detected a strong high-energy GRB with a flux of (10 +/- 1.0) (see GCN Circular #14471 and GCN Circular #14508).
    • Sporadic daily detections of blazars (fluxes below 1): Mkn 421, CTA 102, OX 169, B2 2319+31, S5 1044+71.

    Fluxes are in the unit of 10-6 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:
    - B. Carpenter (carpbr01[at]gmail.com) for generic information related to this week
    - Contact persons on this page for individual sources cited above.


    Tuesday, April 23, 2013

    Fermi LAT Weekly Report N. 254



    Covered period: 2013.April.15 - 2013.April.21
    LAT Mission week: 254.57 - 255.57

    • PKS 0507+17 detected in flaring activity on April 21 with a daily flux (1.8±0.3) X 10-6. See ATel#5001.
    • Mrk 421 detected all week, with a daily flux between (0.2±0.1) X 10-6 and (0.8±0.1) X 10-6.
    • PKS 1424-418 detected from April 16 to 21, with a daily flux between (2.0±0.3) X 10-6 and (2.9±0.4) X 10-6.
    • S5 0716+71 detected on April 15, 17, 18, 19, 20, and 21, with a daily flux between (0.3±0.1) X 10-6 and (0.7±0.2) X 10-6.
    • PKS 0426-380 detected on April 16, 17, 19, 20, and 21, with a daily flux between (0.6±0.2) X 10-6 and (1.1±0.2) X 10-6.
    • 4C +38.41 detected on April 15, 16, 19, and 21, with a daily flux between (0.6±0.1) X 10-6 and (1.1±0.3) X 10-6.
    • PMN J2345-1555 detected on April 17, 19, 20, and 21, with a daily flux between (0.4±0.1) X 10-6 and (0.6±0.2) X 10-6.
    • NGC 1275 detected on April 15, 19, and 20, with a daily flux between (0.3±0.1) X 10-6 and (0.6±0.2) X 10-6.
    • CTA 102 detected on April 19, and 20 with a daily flux of (1.0±0.3) X 10-6 and (0.6±0.2) X 10-6, respectively.
    • PKS 1510-089 detected on April 17 with a daily flux of (1.0±0.4) X 10-6.
    • Sporadic activity (daily fluxes below 10-6): PKS 2320-035 (April 16), PKS 0405-385 (April 18), OX 169 (April 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) and M. Orienti (orienti[at]ira.inaf.it) for generic information related to this week
      - Contact persons on this page for individual sources cited above.


    Monday, April 15, 2013

    Fermi LAT Weekly Report N. 253



    Covered period: 2013.April.08 - 2013.April.14
    LAT Mission week: 253.57 - 254.57

    • Mrk 421 detected from April 9 to 14, with a daily flux between (0.4±0.1) X 10-6 and (0.8±0.2) X 10-6. See ATel#4977. Due to the exceptionally high X-ray and TeV activity (ATel#4974 and ATel#4976), and in response to a Target of Opportunity request, Fermi has interrupted the nominal all-sky scanning mode starting at 23:00 UT on April 12 and transitioned to a modified survey mode where Fermi stays rocked 50 deg north. The modified Fermi survey mode provides an increase in the exposure on Mrk 421 by about a factor of 2.
    • CTA 102 detected all week, with a daily flux between (0.8±0.2) X 10-6 and (3.6±0.4) X 10-6.
    • PKS 1424-418 detected on April 8, 9, 10, 12, 13, and 14, with a daily flux between (1.7±0.4) X 10-6 and (2.4±0.4) X 10-6.
    • S5 0716+71 detected on April 8, 10, 11, and 14, with a daily flux between (0.4±0.1) X 10-6 and (0.8±0.2) X 10-6.
    • 4C +38.41 detected on April 10, 11, 12, and 14, with a daily flux between (0.6±0.1) X 10-6 and (1.3±0.3) X 10-6.
    • PMN J2345-1555 detected on April 11, 12, 13, and 14, with a daily flux between (0.6±0.2) X 10-6 and (0.8±0.2) X 10-6.
    • A solar flare was detected on April 11 with a daily flux of (9.0±0.7) X 10-6.
    • Sporadic activity (daily fluxes below 10-6): PKS 0446-439 (April 8), PKS 0454-234 (April 8), S5 1044+71 (April 9), 3C 454.3 (April 9 and 14), PKS 1124-186 (April 11), PKS 0426-380 (April 12 and 13), PKS 0405-385 (April 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:
      - M. Orienti (orienti[at]ira.inaf.it) and 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.


    Tuesday, April 9, 2013

    Fermi LAT Weekly Report N. 252


    Covered period: 2013.Apr.01 - 2013.Apr.07
    LAT Mission week: 252.57 - 253.57

    • S5 1044+71 was detected in a flaring state on April 1 with a daily averaged flux of (0.9+/-0.2) X 10-6 which is 17 times its daily average flux from the 2FGL catalog (see ATel#4941). The flare also triggered a GCN Notice (see GCN#1365345993).
    • PKS B1424-418 was detected all week with daily averaged fluxes between (0.9 +/- 0.3) X 10-6 and (2.2 +/- 0.4) X 10-6.
    • CTA 102 was detected all week with a daily averaged flux between (1.0 +/- 0.3) X 10-6 and (3.4 +/- 0.4) X 10-6.
    • 3C 454.3 was detected all week with a daily averaged flux between (0.6 +/- 0.2) X 10-6 and (1.7 +/- 0.3) X 10-6.
    • 4C +38.41 was detected on Apr 2. and Apr 7. with a peak daily averaged flux was between (1.2 +/- 0.3) X 10-6.
    • Sporadic daily detections of blazars (fluxes below 1X10-6): PKS 0426-380, Mkn 421, PKS 0447–439, B3 1343+451, S5 0716+71.

    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.


    Friday, April 5, 2013

    Fermi LAT Weekly report N.251


    Covered period: 2013 Mar. 25 - 31
    LAT Mission week: 251.57 - 252.57


    • PKS B1424-41 was detected every day with a daily flux between (1.3 ± 0.3) e-6 and (2.0 ± 0.3) e-6
    •  3C 454.3 was detected at March 26, 28, 29, 30 and 31 with a daily flux between (0.5 ± 0.2) e-6 and (1.8 ± 0.4) e-6
    •  1FGL J1018.6–5856 was detected at March 26 and 29 with a daily flux of (0.9 ± 0.3) e-6 and (1.4 ± 0.4) e-6
    •  Sporadic activity (daily fluxes below 1e-6):
    • MG1 J123931+0443 (March 25),  Mkn 421 (March 25, 26, 27, 28, 30 and 31), S5 1044+71 (March 28 and 30),  PKS 0426–380 (March 27,28,29,30 and 31), B3 1343+451 (March 27 and 30),  4C +38.41 (March 27),  PKS 0454–234 (March 27),  PKS B1424--328 (March 29),  CTA 102 (March 29),  PKS 0537--441 (March 29),  PMN J2345--1555 (March 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:
      - Kenji Kawaguchi(kawaguti[at]hep01.hepl.hiroshima-u.ac.jp) for generic information related to this week
      - Contact persons on this page for individual sources cited above.

    Fermi LAT Weekly report N. 250



    Covered period: 2013.March.18 - 2013.March.24
    LAT Mission week: 250.57 - 251.57

    • PKS 1424-418 detected all week, with a daily flux between (0.9±0.2) X 10-6 and (1.9±0.3) X 10-6.
    • Mrk 421 detected on March 18, 19, 20, and 21, with a daily flux between (0.2±0.1) X 10-6 and (0.6±0.2) X 10-6..
    • 3C 454.3 detected on March 19, 21, and 22, with a daily flux between (0.6±0.2) X 10-6 and (0.7±0.2) X 10-6.
    • PKS 1510-089 detected on March 23, and 24 with a daily flux of (1.1±0.3) X 10-6 and (0.7±0.3) X 10-6, respectively.
    • Sporadic activity (daily fluxes below 10-6): B2 2223+28A (March 18), PKS 1124-186 (March 22 and 23), S5 1044+71 (March 23 and 24), MG1 J123931+0443 (March 23), PKS 0537-441 (March 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:
      - M. Giroletti (giroletti[at]ira.inaf.it) and 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.


    Thursday, March 21, 2013

    Fermi LAT Weekly report N. 249


    Covered period: 2013 Mar. 11-17
    LAT Mission week: 249.57 - 250.57

    • Gamma-ray flare from a source positionally consistent with the flat spectrum radio quasar S5 1217+71 (also known as TXS 1217+713 and 2FGL J1219.2+7107,z=0.451). The source is detected on March 11 with daily flux (0.6 +/- 0.2)E-6 and on March 12 with daily flux (0.5 +/- 0.1)E-6, about 90 times greater than the average flux reported in the 2FGL catalog (see ATel#4885).
    • PKS 1424-41 in enduring flaring state (daily flux between 1.1E-6 and 1.6E-6).
    • PKS 1510-08 in high state (about 1.9E-6) from March 11 to March 13 then fading in the following days of the week.
    • NGC 1275 in high state (detected with daily flux 0.7E-6 all the days from March 15 to 17).
    • Mkn 421 rather active (detected all the days with a daily flux between 0.4E-4 and 0.6E-6).
    • Rapid flare of CTA 102 on March 15 (1.3E-6). 
    • 3C 454.3 detected at a daily flux level of 0.8E-6 on March 13 and 14.
    • Crab nebula source dimmed at a level of about 4E-6 in the second half of the week.
    • Other blazars detected, also in a single day, during the week, with daily flux value equal or below 0.6E-6 are: PKS 1124-186, PKS 0537-441, PKS 0426-380, PKS 0454-234, 4C +38.41 (also known as B2 1633+38, OS 356), and PKS 1830-211.

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

    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.