Wednesday, October 14, 2009

Fermi LAT Weekly report No. 69

Covered period: 2009.Sep.21 - 2009.Sep.27

  • 3C 273 continued to be active. The fluxes were highest at the beginning of the week, with an average flux value of (8.7 +- 0.8) X 10^-6 on the first two days (21 and 22 of September) and values ~3 X 10^-6 for the rest of the week.

  • 3C 454.3 continued to be active, with an average flux of ~3 X 10^-6 during the week.

  • The FSRQ B3 1343+451 flared the entire week, whith a flux of ~1 X 10^-6. This corresponds to an increase of a factor ~15 in flux with respect to the first year of Fermi observations. Given the high redshift (z=2.534, Shaw, M.S. et al., in preparation) of the source such high fluxes are very rare and
    Atel #2217 was sent out.

  • PKS 1222+21 was detected with a flux of (1.4 +- 0.5) X 10^-6 on 25 of September.

  • GRB 090926181 was detected on 26 of September.

Fluxes are in the unit of photons/cm^2/s above 100 MeV and errors are statistical onlys.

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:

- R. Buehler (buehler[at] for generic information related to this week

- source contact persons on this page for individual objects cited above.

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