Saturday, October 25, 2014

Fermi LAT Weekly report N. 332


Covered period: 2014 October 13-19
LAT Mission week: 332.57 - 333.57
 

  • PKS 1510-08 detected in enhanced state all week with a daily flux level ranging between about 0.6E-6 and 2.0E-6. The source displayed a hard photon index (~2) toward the end of the week.
  • Mkn 501 detected in some days of the week. The peak flux was reached on October 19 when the source was detected with six-hour flux level of (0.5 ± 0.3)E-6.
  • S5 0836+71 detected several times during the week at flux level of about 0.8E-6.
  • 3C 454.3 and PKS 1424–418 detected several times during the week.
  • Sporadic other detections (with daily flux lower than about 0.6E-6): 4C +38.41, PKS B1908-201, Mrk 421, PKS 2326-502, 3C 279, NGC 1275, PKS 1441+25, AO 0235+164, GB6 J0742+5444, 4C +01.28, B2 1520+31,  PKS B1222+216 (4C +21.35), PG 1553+113, B2 1144+40, PKS 0426-380.
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 (sara.buson[at]pd.infn.it) for generic information related to this week.
- Contact persons on this page for individual sources cited above.

Wednesday, October 22, 2014

Fermi LAT Weekly report N. 331


Covered period: 2014 October 6-12
LAT Mission week: 331.57 - 332.57
  • Flare of blazar PKS 0336-01 (CTA 26) peaking on October 11, 2014, with a daily flux of about 1.1E-6 about 20 times greater than the average flux reported in the 2FGL catalog. This is the first time that such a high level of GeV emission is detected on daily time scales since the outburst observed by EGRET in 1995 (see ATel #6568 for more details).

    * Flare of blazar PKS B1908-201 (TXS 1908-201, OV -213) peaking on October 12, 2014, with a daily flux of about 1.3E-6 about 10 times greater than the average flux reported in the 2FGL catalog. Also PKS B1908-201 is a known EGRET blazar observed this week in flaring state by the LAT (see ATel #6575 for more details).

    * 3C 454.3 detected in bright state all week with a daily flux level ranging between about 0.8E-6 and 2.1E-6.

    * Flare of 3C 279 on October 12 with daily flux of about 1.6E-6. to be noted that this week the Sun was in conjunction with 3C 279.

    * Mkn 501 active during the week being detected on daily scales all the days with a flux 2x/4X the 2FGL flux.

    * Further bright blazars detected during the week with daily flux in the range of about 0.7E-6 to 1.0E-6: PKS 1510-08, PKS 2326-502, 3C 279, PKS 0426-380, 4C +21.35 (PG 1222+216), NGC 1275 (Per A).

    * Other blazars detected in some days of the week (with daily flux lower than about 0.7E-6): Mkn 421, B2 1144+40, PKS 1424-41, B2 1520+31, PKS 2155-304, 4C +38.41 (B2 1633+38), PG 1553+113, PKS 1352–104, PKS 0502+049

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.


Saturday, October 11, 2014

Fermi LAT Weekly report N. 330


Covered period: 2014 September 29 - October 5
LAT Mission week: 330.57 - 331.57

  • PKS 0502+049 (recent Fermi-Swift ATel #6425) observed in flaring state peaking on Oct. 1 at 1.4E-6.
  • Detection of a new transient gamma-ray source Fermi J2007-2518 with a rapid flare peaked on Sep. 29 at a daily flux level of 1.5E-6. Source also confirmed in high active state on one week timescale. More details, including first results of a Swift ToO, in ATel#6555.
  • Flare of PKS 1352-104 peaking on Sept. 29 with a daily flux of 0.9E-6 about 20 times greater than the average flux reported in the 2FGL catalog (see ATel #6522 for more details). 
  • 3C 454.3 detected in high state all week with a daily flux level ranging between about 1.5E-6 and 2.8E-6.
  • 4C +21.35 (PG 1222+216) in high state all week with a daily flux level ranging between about 0.7E-6 and 1.3E-6. 
  • CTA 102 detected in high state on Oct. 2 with daily flux level of 1.4e-6.
  • Further bright blazars detected during the week, also sporadically, with daily flux in the range of about 0.6E-6 to 1.0E-6: PKS 1510-08, PKS 2326-502, S5 0836+71, PKS 1406-076, PKS 1424-41, PKS 0454-234, AO 0235+164, PKS 0454-234, S3 0218+35 (lens B0218+35), NGC 1275 (Per A).
  • Other blazars detected in some days of the week (with daily flux lower than about 0.6E-6): S5 0716+71, 4C +38.41 (B2 1633+38), PKS 0336-01, Mkn 501, Mkn 421, PKS 2155-304, PKS 0402-362, PKS 2155-304, B2 1520+31.
  • Results about Fermi LAT and Swift observations of increased activity in blazar PMN J2141-6411 are reported in ATel#6547 issued during the week.
  • Results about Fermi LAT detection of gamma-ray flaring activity from Broad Line Radio Galaxy 3C 120 are reported in ATel #6529 issued during the week.

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, October 2, 2014

Fermi LAT Weekly report N. 329


Covered period: 2014 September 21-28
LAT Mission week: 329.57 - 330.57


  • 3C 454.3 detected in high activity state all week with a daily flux level ranging between about 2.0E-6 and 5.0E-6. The flux peak was reached on Sept 27, with a 6-hour interval flux of about 8.6E-6.
  • PKS 1510-08 detected in quite active state all week with a daily flux level above 1E-6.
  • S5 0716+714 detected below the 1E-6 level in the first part of the week.
  • Mkn 421 detected several times during the week.
  • Further bright blazars detected during the week with a daily flux above the 1E-6 level 4C +21.35 (PG 1222+216) and NGC 1275 (Per A) .
  • Sporadic other detections (with daily flux lower than about 0.6E-6): PKS 2326-502, PKS 0336–01, PKS 0402–362, 4C +55.17, PKS 1424-41 .
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. Cutini (sara.cutini[at]asdc.asi.it) for generic information related to this week.
- Contact persons on this page for individual sources cited above.




Tuesday, September 23, 2014

Fermi LAT Weekly report N. 328


Covered period: 2014 September 15-21
LAT Mission week: 328.57 - 329.57

  • PKS 0502+049 observed in continued outburst state during the week and peaking on Sept. 18 at a daily flux level of about 2E-6 and a 6-hour interval flux of about 2.9E-6 equivalent to about 100 times the 2FGL flux.
  • 3C 454.3 detected in high activity state all week with a daily flux level ranging between about 3.0E-6 and 8.0E-6. The flux peak was reached on Sept 16, with a 6-hour interval flux of about 14E-6.
  • PKS 1510-08 detected in active state all week with a daily flux level ranging between about 0.9E-6 and 1.7E-6 (GCN/FERMI NOTICE #1411051517).
  • PKS 2326-502 bright in the central part of the week reaching a daily flux level of 1.2E-6 on Sept. 18.
  • B2 1520+31 observed in flaring state on Sept. 20 at 1.4e-6.
  • NRAO 150 (4C +50.11) detected on September 18 at 1.2e-6.
  • 3C 279 increased in flux to a level of 1.1E-6 in the last two days of the week.
  • Further bright blazars detected during the week with daily flux in the range of about 0.5E-6 to 0.8E-6:  PKS 0426-380S5 0716+71.
  • Other blazars detected in some days of the week (with daily flux lower than about 0.6E-6): PKS 0347-211, Mkn 421, PKS 0402-362, PKS 1622-29, B2 1144+40, 4C +21.35 (PG 1222+216), NGC 1275 (Per A), PKS 1424-41, PKS 2136-642, PKS 0454–234, 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.


Thursday, September 18, 2014

Fermi LAT Weekly Report N. 327


Covered period: 2014.Sep.8 - 2014.Sep.14
LAT Mission week: 327.57 - 328.57

  • PKS 0502+049 was detected all week with daily averaged fluxes between (1.4 ± 0.3) and (3.7 ± 0.4).
  • 3C 454.3 was detected all week with daily averaged fluxes between (1.9 ± 0.5) and (5.4 ± 0.8).
  • PKS 1510-08 was detected all week with daily averaged fluxes between (0.5 ± 0.2) and (1.0 ± 0.2).
  • CTA 102 was detected on September 11 and 12 with daily averaged fluxes between (0.7 ± 0.3) and (1.6 ± 0.6).
  • 3C 273 was detected on September 14 with a daily averaged flux of (1.1 ± 0.4).
  • A Solar flare was detected on September 10 with a daily averaged flux of (0.9 ± 0.3).
  • Sporadic daily detections of blazars (fluxes below 1): BL Lacertae, S4 1800+44, S4 1144+40, PKS 0402-362, 3C 279, NGC 1275, AO 0235+164, PKS 1424-41, B2 1520+31, PKS 0727-11, PKS 0426-380, Mrk 421, PKS 0301-243, 3C 66A,S5 0716+71, PKS 1406-076, 4C +21.35 (PG 1222+216).

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:
- F. Krauss (Felicia.Krauss[at]sternwarte.uni-erlangen.de) for generic information related to this week
- Contact persons on this page for individual sources cited above.


Tuesday, September 9, 2014

Fermi LAT Weekly Report N. 326


Covered period: 2014.Sep.1 - 2014.Sep.7
LAT Mission week: 326.57 - 327.57

  • 3C 454.3 was detected all week with a daily averaged flux between (1.4 +/- 0.4) and (2.0 +/- 0.7).
  • PKS 1510-08 was detected all week with a daily averaged flux between (0.6 +/- 0.2) and (1.1 +/- 0.2).
  • A Solar flare was detected on September 1 with a daily averaged flux of (64.7 +/- 1.8).
  • Sporadic daily detections of blazars (fluxes below 1):AO 0235+164, 3C 273, PKS 1424-418, S4 1749+70, Mkn 421, 3C 66A, 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.