First AGILE catalog of gamma-ray sources
Author(s)
Chen A.W., Bulgarelli A., Pellizzoni A., Giuliani A., Vercellone S., Longo F., Tavani M., Giommi P., Barbiellini G., Trifoglio M., Gianotti F., Argan A., Antonelli A., Boffelli F., Caraveo P., Cattaneo P.W., Cocco V., Colafrancesco S., Contessi T., Costa E., Cutini S., D'ammando F., Del Monte E., De Paris G., Di Cocco G., Di Persio G., Donnarumma I., Evangelista Y., Fanari G., Feroci M., Ferrari A., Fiorini M., Fornari F., Fuschino F., Froysland T., Frutti M., Galli M., Gasparrini D., Labanti C., Lapshov I., Lazzarotto F., Liello F., Lipari P., Mattaini E., Marisaldi M., Mastropietro M., Mauri A., Mauri F., Mereghetti S., Morelli E., Moretti E., Morselli A., Pacciani L., Perotti F., Piano G., Picozza P., Pilia M., Pontoni C., Porrovecchio G., Preger B., Prest M., Primavera R., Pucella G., Rapisarda M., Rappoldi A., Rossi E., Rubini A., Sabatini S., Santolamazza P., Scalise E., Soffitta P., Stellato S., Striani E., Tamburelli F., Traci A., Trois A., Vallazza E., Vittorini V., Zambra A., Zanello D., Salotti L.
Subjects
Date Issued
2009-11-01
Mission(s)
Abstract
We present the first catalog of high-confidence gamma-ray sources detected by the AGILE satellite during observations performed from July 9, 2007 to June 30, 2008. Cataloged sources were detected by merging all the available data over the entire time period. AGILE, launched in April 2007, is an ASI mission devoted to γ-ray observations in the 30MeV-50GeV energy range, with simultaneous X-ray imaging capability in the 18-60keV band. This catalog is based on Gamma-Ray Imaging Detector (GRID) data for energies greater than 100MeV. For the first AGILE catalog, we adopted a conservative analysis, with a high-quality event filter optimized to select γ-ray events within the central zone of the instrument field of view (radius of 40°). This is a significance-limited (4σ) catalog, and it is not a complete flux-limited sample due to the non-uniform first-year AGILE sky coverage. The catalog includes 47 sources, 21 of which are associated with confirmed or candidate pulsars, 13 with blazars (7 FSRQ, 4 BL Lacs, 2 unknown type), 2 with HMXRBs, 2 with SNRs, 1 with a colliding-wind binary system, and 8 with unidentified sources.