NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-19 T13:29:24 PDT
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For refcode 2015MNRAS.448.3766K:
Retrieve 131 NED objects in this reference.
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NED Abstract

Copyright by Royal Astronomical Society. 2015MNRAS.448.3766K INTEGRAL 11-year hard X-ray survey above 100 keV Krivonos, R.; Tsygankov, S.; Lutovinov, A.; Revnivtsev, M.; Churazov, E.; Sunyaev, R. Abstract. We present the results of an all-sky survey, performed with data acquired by the Imager on-Board the INTEGRAL Satellite (IBIS) telescope on board the INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) observatory over 11 years of operation, at energies above 100 keV. The catalogue of detected sources includes 132 objects. The statistical sample detected on the time-averaged 100-150 keV map at a significance above 5sigma contains 88 sources: 28 active galactic nuclei (AGNs), 38 low-mass X-ray binaries (LMXBs), 10 high-mass X-ray binaries (HMXBs) and 12 rotation-powered young X-ray pulsars. The catalogue also includes 15 persistent sources, which were registered at significance 4sigma <= S/N < 5sigma, where S/N is the signal-to-noise ratio, but at the same time were firmly detected (>=12sigma) in the lower 17-60 keV energy band. All registered sources are known X-ray emitters, which means that the catalogue has 100 per cent purity in this respect. Additionally, 29 catalogued sources were detected significantly in different time slices of the survey. In the context of the survey, we present a hardness ratio for Galactic and extragalactic sources, an LMXB longitudinal asymmetry and a number-flux relation for non-blazar AGNs. At higher energies, in the 150-300 keV energy band, 25 sources have been detected with S/N >= 5sigma, including seven AGNs, 13 LMXBs, three HMXBs and two rotation-powered pulsars. Among LMXBs and HMXBs, we identified 12 black hole candidates (BHCs) and four neutron star (NS) binaries. Key words: catalogues, surveys, X-rays: general
Retrieve 131 NED objects in this reference.
Please click here for ADS abstract

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