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AGILE detects enhanced gamma-ray emission above 100 MeV from the 3FGL J1037.2-6052 source region

ATel #9947; F. Lucarelli, C. Pittori, F. Verrecchia (ASDC and INAF/OAR), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), A. Bulgarelli (INAF/IASF-Bo), P. Munar-Adrover, G. Minervini, G. Piano, A. Ursi (INAF/IAPS), 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), F. Paoletti (East Windsor RSD Hightstown and INAF/IAPS), A. Antonelli (ASDC and INAF/OAR), P. Giommi (ASDC), L. Salotti, G. Valentini, and F. D'Amico (ASI)
on 6 Jan 2017; 19:32 UT
Credential Certification: Fabrizio Lucarelli (fabrizio.lucarelli@asdc.asi.it)

Subjects: Gamma Ray, >GeV, Transient

Referred to by ATel #: 9955, 9960

AGILE is detecting intense gamma-ray emission above 100 MeV from an unidentified source, AGL J1035-6055, at Galactic coordinates (l,b)=(287.19, -2.26) +/- 0.4 deg (95% stat.) +/- 0.1 deg (syst.) (R.A., Dec.= 158.96, -60.92 deg, J2000).

Integrating from 2017-01-02 00:00 UT to 2017-01-06 00:00 UT, a maximum likelihood analysis yields the detection of a source at a significance level of about 6 sigma and a flux F(E>100 MeV)=(3.1 +/- 0.8) x 10^-6 ph cm^-2 s^-1.

The weak FERMI unassociated gamma-ray source 3FGL J1037.2-6052 lies within the error circle of the AGILE detection.

This measurement was obtained with AGILE observing a large portion of the sky in spinning mode. Multifrequency observations of the AGL J1035-6055 region are strongly encouraged.