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

Preprint

7 April 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/9912068

Abstract

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 ($0.1<z0.5$) 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.

Keywords

VARIABILITY AMPLITUDE
FLUX LIMITED SAMPLE
X RAY VARIABILITY
SAMPLE OF QSOS
LIMITED SAMPLE
EVOLUTION
AGN

All Related Versions

Version 1, 1999-12-03, ArXiv
Version 2, 2000-04-07, ArXiv
Published version: Monthly Notices of the Royal Astronomical Society, 315 (2), 325.

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