INTEGRAL/IBIS 7-year all-sky hard X-ray survey - II. Catalog of sources

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.