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Enhanced gamma-ray emission from the FSRQ PKS 0131-522

ATel #11003; G. Piano (INAF/IAPS), C. Pittori, F. Verrecchia (SSDC and INAF/OAR), G. Minervini (INAF/IAPS), F. Lucarelli (SSDC and INAF/OAR), P. Munar-Adrover (UAB), A. Ursi (INAF/IAPS), A. Bulgarelli, V. Fioretti, N. Parmiggiani (INAF/IASF-Bo), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), I. Donnarumma (ASI), S. Vercellone (INAF/OA-Brera), 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 24 Nov 2017; 13:51 UT
Credential Certification: Giovanni Piano (giovanni.piano@iaps.inaf.it)

Subjects: Gamma Ray, >GeV, Request for Observations, AGN, Blazar, Quasar

AGILE is detecting enhanced gamma-ray emission above 100 MeV from the FSRQ PKS 0131-522 (z=0.02; also known as 3FGL J0133.2-5159), at Galactic coordinates (l, b) = (288.4, -63.8) +/- 0.6 deg (stat.) +/- 0.1 deg (sys.). An increased gamma-ray luminosity, on November 16-17, has been previously reported by Fermi-LAT (ATel #10987).

Integrating from 2017-11-22 03:00:00 UT to 2017-11-24 03:00:00 UT, a preliminary maximum likelihood analysis yields a detection at a flux F(E>100 MeV)=(2.5 +/- 0.8) x 10^-6 ph cm^-2 s^-1 and a significance greater than 5 sigma.

This measurement was obtained with AGILE observing a large portion of the sky in spinning mode. Multifrequency observations of PKS 0131-522 are strongly encouraged