Volume 619, November 2018
|Number of page(s)||17|
|Section||Catalogs and data|
|Published online||30 October 2018|
A MST catalogue of γ-ray source candidates above 10 GeV and at Galactic latitudes higher than 20°⋆
INAF/OAS-Bologna, via Piero Gobetti 101, 40129 Bologna, Italy
2 INAF/IAPS, via Fosso del Cavaliere 100, 00133 Roma, Italy
3 In Unam Sapientiam, Piazzale A. Moro 2, 00185 Roma, Italy
4 INFN-Sezione di Roma Tre, via della Vasca Navale 84, 00146 Roma, Italy
5 Dipartimento di Matematica e Fisica, Università Roma Tre, Roma, Italy
Accepted: 1 August 2018
We describe a catalogue of γ-ray source candidates selected using the minimum spanning tree (MST) algorithm on the nine year Fermi-LAT sky (Pass 8) at energies higher than 10 GeV. The extragalactic sky at absolute Galactic latitudes above 20° has been investigated using rather restrictive selection criteria, resulting in a total sample of 1342 sources. Of these, 249 are new detections that have not been previously associated with γ-ray catalogues. A large portion of these candidates have interesting counterparts, which are most likely blazars. In this paper, we report the main results of the catalogue selection and search of counterparts.
Key words: gamma rays: general / gamma rays: galaxies / methods: data analysis
The catalogue is only available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (184.108.40.206) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/619/A23
© ESO 2018
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