AGILE detection of renewed Gamma-ray activity from 3C 454.3
ATel #15782; G. Panebianco (Univ. Bologna - INAF/OAS-Bo), A. Bulgarelli (INAF/OAS-Bo), C. Pittori (SSDC and INAF/OAR), F. Verrecchia (SSDC and INAF/OAR), G. Piano (INAF/IAPS), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), V. Fioretti, N. Parmiggiani, A. Addis, L. Baroncelli, A. Di Piano (INAF/OAS-Bo), F. Lucarelli (SSDC and INAF/OAR), S. Vercellone (INAF/OA-Brera), M. Cardillo, A. Ursi, C. Casentini (INAF/IAPS), I. Donnarumma (ASI), F. Gianotti, M. Trifoglio (INAF/OAS-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, L. Foffano, I. Lapshov, E. Menegoni, L. Pacciani, P. Soffitta, V. Vittorini (INAF/IAPS), F. Lazzarotto (INAF/OAPD), G. Di Cocco, F. Fuschino, M. Galli, C. Labanti (INAF/OAS-Bo), M. Marisaldi (University of Bergen), A. Pellizzoni, M. Pilia, A. Trois (INAF/OA-Cagliari), G. Barbiellini (INFN Trieste), F. Longo (Univ. Trieste and INFN Trieste), E. Vallazza (INFN Milano Bicocca), 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), L. A. Antonelli (INAF/OAR), P. Giommi, L. Salotti, G. Valentini, and F. D'Amico (ASI)
on 30 Nov 2022; 10:11 UT
Credential Certification: Andrea Bulgarelli (bulgarelli@iasfbo.inaf.it)
Subjects: Gamma Ray, AGN, Blazar
The GRID detector onboard the AGILE satellite is detecting renewed gamma-ray activity from the blazar 3C 454.3. Integrating from 2022-11-28 04:00:00 UT to 2022-11-30 04:00:00 UT, a preliminary multi-source likelihood analysis yields a detection with a significance of 5.3 sigma and a gamma-ray flux F(>100 MeV) = (2.9 +/- 0.9) x 10^-6 photons/cm^2/s.
The AGILE-GRID detection was obtained while AGILE is observing in spinning mode, surveying a large fraction of the sky each day. The source can be monitored with the public mobile application "AGILEScience" developed by the AGILE Team, available for both Android and iOS devices.
