Friday, February 19, 2010

Fermi LAT weekly report N.87

Covered period: 2010.Feb.01 - 2010.Feb.07

LAT Mission week: 87.57 - 88.57

  • The flat-spectrum radio quasar 3C 454.3 was still the brightest source on the sky with a flux of (2.7 +/- 0.2)e-6.

  • The flat-spectrum radio quasar PKS 0402-362 flared to a flux of (1.0 +/- 0.3)e-6 on February 1, 2010, roughly one order of magnitude higher than the eleven-month average flux of 1FGL J0403.9-3603 (the associated LAT 1-year point source catalog object). Details are reported in ATel #2413.

  • A new, flaring GeV source was detected by the Fermi LAT on February 1, 2010. The source is located ~1 deg from the Galactic plane. The flux during the one-day period of February 1 was (0.8 +/- 0.3)e-6. Details are reported in ATel #2414. The Fermi LAT report triggered multi-wavelength observations which have been reported in the following ATel's: 2416, 2420, 2421, 2428, 2429, 2433.

  • The flat-spectrum radio quasar 3C 273 has been bright, with a flux of (1.2 +/- 0.1)e-6 on the one-week timescale.
  • The flat-spectrum radio quasar 3C 279 has been detected with a flux of (0.5 +/- 0.1)e-6 during the one-week timescale.

Fluxes are in the unit 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:

- J. Vandenbroucke (justinv[at] for generic information related to this week

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

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