SIMBAD references

2005A&A...444L..37S - Astronomy and Astrophysics, volume 444, L37-40 (2005/12-3)

Identification of 8 INTEGRAL hard X-ray sources with Chandra.

SAZONOV S., CHURAZOV E., REVNIVTSEV M., VIKHLININ A. and SUNYAEV R.

Abstract (from CDS):

We report the results of identification of 8 hard X-ray sources discovered by the INTEGRAL observatory during the ongoing all-sky survey. These sources have been observed by Chandra. In 6 cases a bright X-ray source was found within the INTEGRAL localization region, which permitted to unambiguously identify 5 of the objects with nearby galaxies, implying that they have an active galactic nucleus (AGN), whereas one source is likely an X-ray binary in LMC. 4 of the 5 newly discovered AGNs have measured redshifts in the range 0.025-0.055. The X-ray spectra reveal the presence of significant amounts of absorbing gas (NH in the range 1022-1024cm–2) in all 5 AGNs, demonstrating that INTEGRAL is starting to fill in the sample of nearby obscured AGNs.

Abstract Copyright:

Journal keyword(s): surveys - galaxies: Seyfert - X-rays: general

Simbad objects: 14

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