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http://hdl.handle.net/20.500.12386/26523
Title: | Search of MeV-GeV counterparts of TeV sources with AGILE in pointing mode | Authors: | Rappoldi, A. LUCARELLI, Fabrizio PITTORI, Carlotta Longo, F. Cattaneo, P. W. VERRECCHIA, Francesco TAVANI, MARCO BULGARELLI, ANDREA Chen, A. W. Colafrancesco, S. Donnarumma, Imma GIULIANI, ANDREA Morselli, A. Sabatini, S. VERCELLONE, STEFANO |
Issue Date: | 2016 | Journal: | ASTRONOMY & ASTROPHYSICS | Number: | 587 | First Page: | A93 | Abstract: | Context. Known TeV sources detected by major Čerenkov telescopes are investigated to identify possible MeV-GeV γ-ray counterparts. <BR /> Aims: A systematic study of the known sources in the web-based TeVCat catalog has been performed to search for possible γ-ray counterparts on the AGILE data collected during the first period of operations in observing pointing mode. <BR /> Methods: For each TeV source, a search for a possible γ-ray counterpart that is based on a multi-source maximum likelihood algorithm is performed on the AGILE data taken with the GRID instrument from July 2007 to October 2009. <BR /> Results: In the case of high-significance detection, the average γ-ray flux is estimated. For cases of low-significance detection the 95% confidence level (CL) flux upper limit is given. 52 TeV sources out of 152 (corresponding to ~34% of the analysed sample) show a significant excess in the AGILE data covering the pointing observation period. <BR /> Conclusions: This analysis found 26 new AGILE sources with respect to the AGILE reference catalogs, 15 of which are galactic, 7 are extragalactic and 4 are unidentified. Detailed tables with all available information on the analysed sources are presented. | Acknowledgments: | The authors would like to thank the Istituto Nazionale di Astrofisica, the Agenzia Spaziale Italiana, the Consorzio Interuniversitario per la Fisica Spaziale, and the Istituto Nazionale di Fisica Nucleare for their generous support of the AGILE mission and this research, including ASI contracts N. I/042/10/1 and I/028/12/0. | Note: | An interactive online version of the considered source list including all the analysis results is also available at the website http://www.asdc.asi.it/agiletevcat/ | URI: | http://hdl.handle.net/20.500.12386/26523 | URL: | https://www.aanda.org/articles/aa/abs/2016/03/aa26709-15/aa26709-15.html | ISSN: | 0004-6361 | DOI: | 10.1051/0004-6361/201526709 | Bibcode ADS: | 2016A&A...587A..93R | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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aa26709-15.pdf | PDF editoriale | 1.12 MB | Adobe PDF | View/Open |
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