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arxiv: astro-ph/0702701 · v1 · submitted 2007-02-27 · 🌌 astro-ph

On the fraction of X-ray obscured quasars

classification 🌌 astro-ph
keywords obscuredfractionquasarslocalstudiesuniversex-raycdfs
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Various studies have claimed that the fraction of obscured AGN drops with luminosity, but contrary results are also reported. We present our recent studies on the fraction of X-ray obscured quasars in Chandra Deep Fields and in the local universe showing that most quasars in CDFs (at redshift of 1 ~ 4) are obscured and a consistent pattern in the local universe.

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