INTEGRAL/IBIS 7-year All-Sky Hard X-Ray Survey

II. Catalog of sources^⋆,⋆⋆

¹ Max-Planck-Institute für Astrophysik, Karl-Schwarzschild-Str. 1, 85740 Garching bei München, Germany
e-mail: krivonos@mpa-garching.mpg.de
² Space Research Institute, Russian Academy of Sciences, Profsoyuznaya 84/32, 117997 Moscow, Russia
³ Excellence Universe Cluster, Munich Technical University, Boltzman-Str. 2, 85748 Garching bei München, Germany

Received: 4 May 2010
Accepted: 23 June 2010

Abstract

This paper is the second in a series devoted to the hard X-ray (17 − 60 keV) whole sky survey performed by the INTEGRAL observatory over seven years. Here we present a catalog of detected sources that includes 521 objects, 449 of which exceed a 5σ detection threshold on the time-averaged map of the sky, and 53 were detected in various subsamples of exposures. Among the identified sources with known and suspected nature, 262 are Galactic (101 low-mass X-ray binaries, 94 high-mass X-ray binaries, 37 cataclysmic variables, and 30 of other types) and 221 are extragalactic, including 217 active galactic nuclei (AGNs) and 4 galaxy clusters. The extragalactic (|b|  > 5°) and Galactic (|b|  < 5°) persistently detected source samples have high identification completeness (respectively  ~ 96% and  ~ 93%) and are valuable for population studies.