Fermi LAT detection of a GeV flare from PKS B 1622-297

Details Fermi LAT detection of a GeV flare from PKS B 1622-297 Fermi LAT detection of a GeV flare from PKS B 1622-297

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atel.2531....1w&link_type=abstract

The Astronomer's Telegram, #2531

Astronomy and Astrophysics

Astronomy

Gamma Ray, >Gev, Agn, Quasars

Scientific paper

The Large Area Telescope (LAT), on board the Fermi Gamma-Ray Space Telescope, has detected a heightened gamma-ray flux from a source positionally consistent with the blazar PKS B 1622-297 (J2000, RA = 16h26m06.0208s, Dec = -29d51m26.970s, Johnston, et al. 1995 AJ, 110, 880; z=0.815, Wright & Otrupcek 1990, Parkes Catalogue). Preliminary analysis indicates that on March 29, the source was in a high state, with flux (E>100 MeV) of (5.7 ± 2.4)*10-7 photons/cm2/s, about an order of magnitude greater than its average flux over the first 11 months of Fermi operations (The Fermi-LAT Collaboration, arXiv:1002.2280).

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