A MST catalogue of γ-ray source candidates above 10 GeV and at Galactic latitudes higher than 20°
Abstract
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.
The catalogue is only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/619/A23
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- October 2018
- DOI:
- arXiv:
- arXiv:1808.01176
- Bibcode:
- 2018A&A...619A..23C
- Keywords:
-
- gamma rays: general;
- gamma rays: galaxies;
- methods: data analysis;
- Astrophysics - High Energy Astrophysical Phenomena;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- 18 pages, 10 figures. Accepted for publication in Astronomy &