X-ray variability in a deep, flux limited sample of QSOs

Details X-ray variability in a deep, flux limited sample of QSOs X-ray variability in a deep, flux limited sample of QSOs

1999-12-03

arxiv.org/abs/astro-ph/9912068v2

Mon.Not.Roy.Astron.Soc. 315 (2000) 325

Astronomy and Astrophysics

Astrophysics

Accepted for publication in MNRAS. 11 pages, 12 encapsulated figures. Final proof version, with corrections to Equation A5, Fi

Scientific paper

10.1046/j.1365-8711.2000.03385.x

We present an analysis of X-ray variability in a flux limited sample of QSOs. Selected from our deep ROSAT survey, these QSOs span a wide range in redshift ($0.10.5$) do not show the anti-correlation with luminosity seen in local AGN. We speculate on the implications of these results for physical models of AGN and their evolution. Finally, we find evidence for X-ray variability in an object classified as a narrow emission-line galaxy, suggesting the presence of an AGN.

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