The X-ray source content of the XMM-Newton Galactic plane survey
نویسندگان
چکیده
منابع مشابه
An X-ray Survey in SA 57 with XMM-Newton
Context. The maximum number density of Active Galactic Nuclei (AGNs), as deduced from X-ray studies, occurs at z <∼1, with lower luminosity objects peaking at smaller redshifts. Optical studies lead to a different evolutionary behaviour, with a number density peaking at z ≈2 independently of the intrinsic luminosity, but this result is limited to active nuclei brighter than the host galaxy. A s...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2010
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/200913570