Astronomy and Astrophysics · 2011 · 239 citations · 92 references
Natural SciencesAstronomyObservational AstronomyRadio AstronomyX-ray AstronomyX-ray Data AnalysisX-ray Source CatalogsAccretion DynamicsAccretion Rate VariabilityAccretion VariabilityAgn VariabilityOptical Emission SpectraRate DependenceTime Scales
Context. We report on the results of the first XMM-Newton systematic “excess variance” study of all the radio quiet, X-ray un-obscured AGN. The entire sample consist of 161 sources observed by XMM-Newton for more than 10 ks in pointed observations, which is the largest sample used so far to study AGN X-ray variability on time scales less than a day.
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B. M. Peterson, Laura Ferrarese, Karoline M. Gilbert et al. · The Astrophysical Journal · 2004 · 1.8K citations · Full text
Natural Sciences, Astronomy, Physics +13
Atlas of quasar energy distributions
M. Elvis, B. J. Wilkes, Jonathan McDowell et al. · The Astrophysical Journal Supplement Series · 1994 · 1.8K citations · Full text
Natural Sciences, Astronomy, Physics +11