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AGILE detects enhanced gamma-ray emission from the FSRQ PKS 1510-089

ATel #3907; F. Verrecchia, C. Pittori (ASDC), M. Cardillo (INAF/IASF-Rm and Univ. Tor Vergata), E. Striani (Univ. Roma Tor Vergata), I. Donnarumma (INAF/IASF-Rm), S. Vercellone (INAF/IASF-Pa), M. Tavani (INAF/IASF-Rm, and Univ. Tor Vergata), A. Bulgarelli, F. Gianotti, M. Trifoglio (INAF/IASF-Bo), A. Chen, A. Giuliani, S. Mereghetti, P. Caraveo, F. Perotti (INAF/IASF-Mi),F. D'Ammando (INAF/IASF-Pa), E. Del Monte, Y. Evangelista, M. Feroci, F. Lazzarotto, L. Pacciani, P. Soffitta, E. Costa, I. Lapshov, M. Rapisarda, A. Argan, G. Piano, S. Sabatini, A. Trois, V. Vittorini (INAF/IASF-Rm), G. Pucella (ENEA), F. Fuschino, M. Galli, C. Labanti, M. Marisaldi, G. Di Cocco (INAF/IASF-Bo), A. Pellizzoni, M. Pilia (INAF/OA-Cagliari), G. Barbiellini (INFN Trieste), F. Longo (Univ Trieste and INFN Trieste), E. Moretti, E. Vallazza (INFN Trieste), A. Morselli, P. Picozza, (INFN and Univ. Roma Tor Vergata), M. Prest (Univ. dell'Insubria), P. Lipari, D. Zanello (INFN and Univ. Roma Sapienza), P. W. Cattaneo, A. Rappoldi (INFN Pavia), F. Lucarelli, P. Santolamazza, P. Giommi (ASDC), L. Salotti and G. Valentini (ASI)
on 2 Feb 2012; 12:41 UT
Credential Certification: Carlotta Pittori (carlotta.pittori@asdc.asi.it)

Subjects: Gamma Ray, >GeV, AGN, Blazar, Quasar

Referred to by ATel #: 3910, 3934, 3965

AGILE is detecting enhanced gamma-ray emission above 100 MeV from a position consistent with the flat spectrum radio quasar PKS 1510-089 (also known as BZQ J1512-0905, coordinates: R.A. = 15h 12m 50.5s, Dec. =-09d 05m 59.8s, J2000).

Integrating from 2012-01-28 12:00 UT to 2012-02-01 12:00 UT, a maximum likelihood analysis yields a detection at a significance level of above 7 sigma and an average flux of (250+/-60) x 10E-8 ph/cm2/s (E > 100 MeV). The gamma-ray flux is currently increasing.

An increase in the radio flux density at 43 GHz from this source during the second semester of 2011 has been recently reported in ATel #3799 (P. P. Beaklini et al.).

This measurement was obtained with AGILE observing a large portion of the sky in spinning mode.

Multifrequency observations of the blazar PKS 1510-089 are strongly encouraged.