Tuesday, January 31, 2012

Fermi LAT weekly report N.189

Covered period: 2012.Jan.16 - 2012.Jan.22

LAT Mission week: 189.57 - 190.57

  • On Jan. 22 a new gamma ray source was detected with a daily flux about 0.5 X 10-6 near the FSRQ PKS 0646-306 . (ATel #3878). A Swift TOO confirmed an increase of the X-ray flux with respect to historical observation, confirming the identification with the blazar. (ATel #3894)

  • PKS 1510-08 was detected most of the week with daily flux in the range 1.0-2.1 X 10-6.

  • B2 1520+31 was detected most of the week with daily flux in the range 0.6-0.9 X 10-6.

  • 4C +28.07 was detected early in the week with daily flux in the range 0.6-0.7 X 10-6.

  • Sporadic activity (fluxes below 1.0 X 10-6) observed from B2 2155+31, Mrk 421, PKS 1424-41,PKS 0402-362,3C 279,PKS 0537-441, 4C +38.41, PMN J2250-2806, S4 1749+70, Mrk 501, S5 0716+714, PKS 0521–36, Mrk 421, 1ES 2344+514 .

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.

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