Wednesday, May 5, 2010

Fermi LAT weekly report N. 99

Covered period: 2010.Apr.26 - 2010.May.2

LAT Mission week: 99.57 - 100.57

  • 4C+21.35 still very bright, detected all week with an average daily flux of 4.3x10^-6 ph cm-2 s-1, peaking on the 30th April at a flux of (13.1+/-0.7)x10^-6 ph cm-2 s-1.

  • 3C454.3 remained bright, detected every day this week, fluctuating in daily flux between (2.9+/-0.5)x10^-6 ph cm-2 s-1 and (5.7+/-0.6)x10^-6 ph cm-2 s-1.

  • PKS 0537-441 (27th April, daily flux = (1.2+/-0.2)x10^-6 ph cm-2 s-1) and PKS 0301-243 (28th April, daily flux = (1.4+/-0.3) x10^-6 ph cm-2 s-1) exhibited an increase in gamma- ray activity , (see ATel#2591). Both sources detected throughout week.

  • PKS 0426-380 detected on most days this week, at a relatively steady daily flux of ~0.6x10^-6 ph cm-2 s-1.

  • Mrk421 detected on four days this week with an average daily flux of ~0.3x10^-6 ph cm-2 s-1.

  • Sporacid activity from CGRaBS J0850-1213, CGRaBS J1033+6051, PKS 0727-11, PKS 1510-08, PKS 1424-41 and B2 0954+25A

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:

- A. Cannon ( for generic information related to this week

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

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