AGN Populations from Optical Identification of ASCA Surveys

Details AGN Populations from Optical Identification of ASCA Surveys AGN Populations from Optical Identification of ASCA Surveys

2002-01-30

arxiv.org/abs/astro-ph/0201495v1

Astronomy and Astrophysics

Astrophysics

6 pages with 4 figures, to appear in the proceeding of IAU Colloquium 184 "AGN Surveys" (18-22 June 2001, Armenia)

Scientific paper

To understand luminous AGNs in the z<1 universe, the ASCA AGN samples are the best at present. Combining the identified sample of AGNs from ASCA Large Sky Survey and Medium Sensitivity Survey, the sample of hard X-ray selected AGNs have been expanded up to 108 AGNs above the flux limit of 10^{-13} erg s^{-1} cm^{-2} in the 2-10 keV hard X-ray band. We discuss the fraction of absorbed AGNs in the hard X-ray selected AGN sample, and nature of absorbed luminous AGNs.

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