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AGILE detection of intense gamma-ray emission from the FSRQ CTA102

ATel #9863; A. Bulgarelli (INAF/IASF-Bo), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), F. Verrecchia, C. Pittori, F. Lucarelli (ASDC and INAF/OAR), P. Munar-Adrover (INAF/IAPS), G. Minervini, G. Piano, A. Ursi (INAF/IAPS), I. Donnarumma (INAF/IAPS), V. Fioretti, A. Zoli (INAF/IASF-Bo), S. Vercellone (INAF/OA-Brera), E. Striani (CIFS and INAF/IAPS), M. Cardillo (INAF/OA-Arcetri and INAF/IAPS), F. Gianotti, M. Trifoglio (INAF/IASF-Bo), A. Giuliani, S. Mereghetti, P. Caraveo, F. Perotti (INAF/IASF-Mi), A. Chen (Wits University), A. Argan, E. Costa, E. Del Monte, Y. Evangelista, M. Feroci, F. Lazzarotto, I. Lapshov, L. Pacciani, P. Soffitta, S. Sabatini, V. Vittorini (INAF/IAPS), G. Pucella, M. Rapisarda (ENEA-Frascati), G. Di Cocco, F. Fuschino, M. Galli, C. Labanti, M. Marisaldi (INAF/IASF-Bo), A. Pellizzoni, M. Pilia, A. Trois (INAF/OA-Cagliari), G. Barbiellini, E. Vallazza (INFN Trieste), F. Longo (Univ. Trieste and 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), S. Colafrancesco (INAF/OAR and Wits University), N. Parmiggiani (University of Modena and Reggio Emilia), A. Ferrari (Univ. Torino and CIFS), F. Paoletti (East Windsor RSD Hightstown and INAF/IAPS), A. Antonelli (ASDC and INAF/OAR), P. Giommi (ASDC), L. Salotti, G. Valentini, and F. D'Amico (ASI)
on 14 Dec 2016; 23:03 UT
Credential Certification: Andrea Bulgarelli (bulgarelli@iasfbo.inaf.it)

Subjects: Gamma Ray, >GeV, AGN, Blazar

Referred to by ATel #: 9868, 9884, 9901, 9911

AGILE is detecting enhanced gamma-ray emission above 100 MeV from a position consistent with the flat spectrum radio quasar CTA 102 (also known as 4C +11.69, PKS 2230+11, 5BZQ J2232+1143 and as gamma-ray source as 3EG J2232+1147, 3FGL J2232.5+114), recently reported in flaring activity by AGILE on December 9 (Atel #9841), November 24 and 11, 2016 (ATel #9788, #9743), and in optical/NIR extraordinary outburst (ATel #9821, #9808 and #9801).

Integrating from 2016-12-12 18:44 UT to 2016-12-14 18:44 UT, a preliminary maximum likelihood analysis yields a detection at 11 sigma at a flux F(E>100 MeV)=(8.0 +/- 1.1) x 10^-6 ph cm^-2 s^-1.

The current flux is the largest ever measured by AGILE for this source with its flux doubling within 12 hours.

This measurement was obtained with AGILE observing a large portion of the sky in spinning mode. Multifrequency observations of CTA 102 are strongly encouraged.