AGILE confirmation of flaring activity from the new gamma-ray source Fermi J1153-1124
ATel #12208; F. Lucarelli, F. Verrecchia, C. Pittori (SSDC and INAF/OAR), A. Bulgarelli, N. Parmiggiani, V. Fioretti (INAF/OAS-Bo), M. Tavani (INAF/IAPS and Univ. Roma Tor Vergata), M. Cardillo, G. Piano, A. Ursi (INAF/IAPS), I. Donnarumma (ASI), S. Vercellone (INAF/OA-Brera), 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. Pacciani, P. Soffitta, V. Vittorini (INAF/IAPS), 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, 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), 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 13 Nov 2018; 15:02 UT
Credential Certification: Fabrizio Lucarelli (fabrizio.lucarelli@asdc.asi.it)
Subjects: Gamma Ray, >GeV, Transient
Following the detection of a new flaring gamma-ray source, Fermi J1153-1124 (ATel #12206), we performed a dedicated analysis at the source location (R.A., Decl. (J2000)= 178.44, -11.11 deg) using AGILE-GRID data.
Integrating from 2018-11-09 00:00 UT until 2018-11-13 00:00 UT, a preliminary maximum likelihood analysis yields a detection at the level of about 5 sigma and a flux F(E>100 MeV)=(2.0 +/- 0.7) x 10^-6 ph cm^-2 s^-1, at Galactic coordinates (l, b) =(280.8, 48.5) +/- 0.6 deg (95% stat. c.l.) +/- 0.1 deg (syst.) (R.A., Decl. (J2000) = 178.1, -11.8 deg).
In a longer 7-day integration, starting from 2018-11-06 00:00 UT until 2018-11-13 00:00 UT, AGILE detected the source with a preliminary significance of about 4 sigma and a flux F(E>100 MeV)=(1.2 +/- 0.4) x 10^-6 ph cm^-2 s^-1.
This measurement was obtained with AGILE observing a large portion of the sky in spinning mode. The source can be monitored with the public mobile application "AGILEScience" developed by the AGILE Team, available for both Android and iOS devices.
