AGILE detection of transient gamma-ray activity from the FSRQ Ton 599

ATel #10937; G. Piano (INAF/IAPS), S. Vercellone (INAF/OA-Brera), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), F. Verrecchia, C. Pittori, F. Lucarelli (SSDC and INAF/OAR), P. Munar-Adrover (UAB), G. Minervini A. Ursi, (INAF/IAPS), A. Bulgarelli, V. Fioretti, N. Parmiggiani (INAF/IASF-Bo), I. Donnarumma (ASI), E. Striani (CIFS and INAF/IAPS), M. Cardillo (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), F. Paoletti (East Windsor RSD Hightstown and INAF/IAPS), A. Antonelli, P. Giommi, L. Salotti, G. Valentini, and F. D'Amico (ASI)
on 8 Nov 2017; 15:07 UT
Credential Certification: Giovanni Piano (giovanni.piano@iaps.inaf.it)

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AGILE confirms emission above 100 MeV from the FSRQ Ton 599 (z = 0.725; also known as 4C +29.45, 3FGL J1159.5+2914), as previously reported by Fermi-LAT (ATel #10931). A NIR flare was also detected from the source on November 6th (ATel #10932).

Integrating from 2017-11-01 00:00:00 UT to 2017-11-04 00:00:00 UT, a preliminary maximum likelihood analysis yields a detection at a flux F(E>100 MeV) = (1.5 +/- 0.6) x 10^-6 ph cm^-2 s^-1.

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