Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atel.1968....1p&link_type=abstract
The Astronomer's Telegram, #1968
Astronomy and Astrophysics
Astronomy
7
Gamma Ray, Request For Observations, Agn, Quasars
Scientific paper
The gamma-ray source 1AGL J1511-0809, positionally consistent with the Flat Spectrum Radio Quasar PKS 1510-089, continues to show significant and very intense gamma-ray emission above 100 MeV (see D'Ammando et al., ATel #1957). A maximum likelihood analysis of the AGILE-GRID data obtained between 2009-03-12 07:00 UT and 2009-03-13 05:00 UT for photon energies above 100 MeV results in a detection significance of above 9 sigma with a source flux in excess of above 400 x 10^-8 ph cm^-2 s^-1.
Argan Andrea
Barbiellini Guido
Bulgarelli Andrea
Caraveo Patrizia
Cattaneo P.
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