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AGILE detects renewed gamma-ray emission from the FSRQ CTA 102

ATel #9788; A. Bulgarelli (INAF/IASF-Bo), F. Verrecchia, F. Lucarelli, C. Pittori (ASDC and INAF/OAR), G. Minervini , G. Piano, P. Munar-Adrover (INAF/IAPS), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), 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), A. Antonelli (ASDC and INAF/OAR), P. Giommi (ASDC), L. Salotti, G. Valentini, and F. D'Amico (ASI)
on 24 Nov 2016; 13:49 UT
Credential Certification: Andrea Bulgarelli (bulgarelli@iasfbo.inaf.it)

Subjects: Gamma Ray, AGN, Black Hole

Referred to by ATel #: 9808, 9821, 9840, 9841, 9863, 9868, 9869, 9901, 9911, 9924, 10292

AGILE is detecting an increasing gamma-ray emission above 100 MeV from a source with galactic coordinates (l,b)= (77.2 , -38.3) +/- 0.5 deg (stat 95% c.l.) +/- 0.1 deg (syst), (RA, Dec) = (337.81, 11.82) (J2000), consistent with the flat spectrum radio quasar CTA 102. Integrating from 2016-11-22 06:44:00 UT to 2016-11-24 06:44:00 UT, a preliminary maximum likelihood analysis yields a detection with a significance of 9 sigma, and a flux F(E>100 MeV)=(5.2 +/- 1.0) x 10^-6 ph cm^-2 s^-1.

Optical flaring activity was recently reported in ATel #9676, ATel #9732, ATel #9756 and ATel #9776. This source was previously observed in an active gamma-ray state by AGILE in December 2015 (ATel #8476) and November 11, 2016 (ATel #9743).

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

Multifrequency observations of CTA 102 region are strongly encouraged.