| Issue |
A&A
Volume 587, March 2016
|
|
|---|---|---|
| Article Number | A93 | |
| Number of page(s) | 15 | |
| Section | Catalogs and data | |
| DOI | https://doi.org/10.1051/0004-6361/201526709 | |
| Published online | 23 February 2016 | |
Search of MeV–GeV counterparts of TeV sources with AGILE in pointing mode⋆
1
INFN–Pavia, via Bassi 6, 27100
Pavia,
Italy
e-mail:
andrea.rappoldi@pv.infn.it
2
ASI Science Data Center, via del Politecnico snc,
00133
Roma,
Italy
3
INAF–Osservatorio Astronomico di Roma,
via di Frascati 33, 00040
Monteporzio Catone, Roma,
Italy
4
INAF–Osservatorio Astronomico di Trieste, via G.B. Tiepolo
11, 34143
Trieste,
Italy
5
INFN–Trieste, Padriciano 99, 34012
Trieste,
Italy
6
INAF-IAPS Roma, via Fosso del Cavaliere 100,
00133
Roma,
Italy
7
Dip. di Fisica, Università “Tor Vergata”,
via della Ricerca Scientifica 1,
00133
Roma,
Italy
8
INAF–IASF Bologna, via Gobetti 101, 40129
Bologna,
Italy
9
School of Physics, University of the Witwatersrand,
Johannesburg Wits
2050, South
Africa
10
INAF–IASF Milano, via E. Bassini 15, 20133
Milano,
Italy
11
INFN–Roma Tor Vergata, via della Ricerca Scientifica
1, 00133
Roma,
Italy
12
INAF–IASF Palermo, via Ugo La Malfa 153,
90146
Palermo,
Italy
Received: 9 June 2015
Accepted: 2 December 2015
Context. Known TeV sources detected by major Čerenkov telescopes are investigated to identify possible MeV-GeV γ-ray counterparts.
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.
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.
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.
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.
Key words: catalogs / gamma rays: general
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/
© ESO, 2016
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