AGILE detection of a persistent and very intense gamma-ray flaring state of the blazar PKS 1510-089
Author(s)
Date Issued
2009-03-01
Mission(s)
Abstract
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.