X-ray absorption in distant type II QSOs

2008/03/10 by M. Krumpe, G. Lamer, A. Corral +7 · 1 citation
Physics and Astronomy · #Absorption (acoustics) #Absorption spectroscopy #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Flux (metallurgy) #Galaxies: Formation, Evolution, Phenomena #Luminosity #QSOS #Quasar #Redshift #astro-ph

paper · pdf · doi:10.1051/0004-6361:20079012

Accepted for publication in A&A (March 03, 2008), 12 pages, 9 figures, online material

arxiv created 2008/03/10 · openalex publication_date 2008/03/11 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Aims. We present the results of the X-ray spectral analysis of an XMM-Newton-selected type II QSO sample with z ≥ 0.5 and 0.5-10 keV flux of 0.3-3310-14 erg/s/cm2. The distribution of absorbing column densities in type II QSOs is investigated and the dependence of absorption on X-ray luminosity and redshift is studied.

Citations

• The synthesis of the cosmic X-ray background in the Chandra and XMM-Newton era
• Candidate Type II Quasars from the Sloan Digital Sky Survey. I. Selection and Optical Properties of a Sample at 0.3<Z<0.83
• The distribution of absorption in AGN detected in the XMM-Newton observations of the CDFS
• Evidence for a large fraction of Compton-thick quasars at high redshift
• The Chandra Deep Field–South: Optical Spectroscopy. I.

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