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Renewed gamma-ray activity of the high-redshift quasar 0836+71 (4C 71.07)

ATel #8266; C. Pittori, F. Verrecchia, F. Lucarelli (ASDC and INAF/OAR), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), S. Vercellone (INAF/IASF-Pa), A. Bulgarelli, V. Fioretti (INAF/IASF-Bo), G. Piano (INAF/IAPS), E. Striani (CIFS and INAF/IAPS), I. Donnarumma (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 10 Nov 2015; 13:45 UT
Credential Certification: Carlotta Pittori (carlotta.pittori@asdc.asi.it)

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

Referred to by ATel #: 8271, 8272

The AGILE satellite detects renewed gamma-ray activity from the high-redshift (z=2.218) quasar 0836+71 (also known as 4C 71.07) since the recent GeV flare reported by AGILE (ATel #8223). A moderate increase in flux was reported by the Swift follow-up observations based on both the XRT and UVOT data (ATel #8229).

Integrating from 2015-11-08 02:53 UT to 2015-11-10 02:53 UT, a maximum likelihood analysis yields the detection of the source with a flux of (3.4 +/- 1.0) x 10E-6 ph/cm2/s (E > 100 MeV) at a significance above 5 sigma.

The gamma-ray flaring activity from this FSRQ was previously announced by Fermi (Atel #7870, ATel #3831 and ATel #3260).

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