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Renewed gamma-ray activity of the Blazar 3C 454.3 detected by AGILE

ATel #9176; A. Bulgarelli (INAF/IASF-Bo), N. Parmiggiani (University of Modena and Reggio Emilia), V. Fioretti, A. Zoli (INAF/IASF-Bo), F. Lucarelli, F. Verrecchia, C. Pittori, (ASDC and INAF/OAR), S. Vercellone (INAF/IASF-Pa), G. Piano, P. Munar-Adrover (INAF/IAPS), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), I. Donnarumma (INAF/IAPS), 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), 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 21 Jun 2016; 21:31 UT
Credential Certification: Andrea Bulgarelli (bulgarelli@iasfbo.inaf.it)

Subjects: Gamma Ray

Referred to by ATel #: 9178, 9186, 9190, 9723

The AGILE satellite is detecting a significant enhancement in gamma-ray activity from the FSRQ 3C 454.3 (known as 1AGLR J2254+1609) since the recent AGILE ATel #9157, and the optical activity reported in ATel #9150.
According to a maximum likelihood analysis of the AGILE-GRID data for the integration period between 2016-06-19 14:25 UT and 2016-06-21 14:25 UT, the flux is F=(5.7 +/- 1.0)x 10^-6 ph/cm^-2/s^-1 (E > 100 MeV); this corresponds to a flux increase of approximately a factor of 3 above the average flux in the last 3 days.
This measurement was obtained with AGILE observing a large portion of the sky in spinning mode.
Multifrequency observations of the source are strongly encouraged.