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.

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