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Title:
AGILE detection of a gamma-ray re-brightening of the blazar PKS 1510-089
Authors:
Vercellone, S.; D'Ammando, F.; Pucella, G.; Tavani, M.; Donnarumma, I.; Pacciani, L.; Bulgarelli, A.; Marisaldi, M.; Gianotti, F.; Trifoglio, M.; Pittori, C.; Verrecchia, F.; Chen, A.; Giuliani, A.; Piano, G.; Vittorini, V.; Costa, E.; Feroci, M.; Del Monte, E.; Lazzarotto, F.; Soffitta, P.; Evangelista, Y.; Lapshov, I.; Rapisarda, M.; Argan, A.; Trois, A.; de Paris, G.; Di Cocco, G.; Labanti, C.; Fuschino, F.; Galli, M.; Caraveo, P.; Mereghetti, S.; Perotti, F.; Fiorini, M.; Zambra, A.; Pellizzoni, A.; Pilia, M.; Barbiellini, G.; Longo, F.; Moretti, E.; Vallazza, E.; Picozza, P.; Morselli, A.; Sabatini, S.; Prest, M.; Lipari, P.; Zanello, D.; Cattaneo, P. W.; Rappoldi, A.; Santolamazza, P.; Colafrancesco, S.; Giommi, P.; Salotti, L.
Publication:
The Astronomer's Telegram, #1976
Publication Date:
03/2009
Origin:
ATEL
Keywords:
Gamma Ray, Request for Observations, AGN, Quasars
Bibliographic Code:
2009ATel.1976....1V

Abstract

The Flat Spectrum Radio Quasar PKS 1510-089, shows a new significant re-brightening above 100 MeV following the previous period of intense gamma-ray activity (see Pucella et al., ATel #1968; D'Ammando et al., ATel #1957). A maximum likelihood analysis of 1AGL J1511-0809 (PKS 1510-089) data obtained between 2009-03-18 05:45 UT and 2009-03-19 05:33 UT for photon energies above 100 MeV yields a detection significance of above 7 sigma with a source flux of about 400 x 10^-8 ph cm^-2 s^-1.
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