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Accretion and outflow of gas in Markarian 509
Jelle Kaastra, Pierre-Olivier Petrucci, Massimo Cappi +13
A major uncertainty in models for photoionised outflows in AGN is the distance of the gas to the central black hole. We present the results of a massive multiwavelength monitoring…
A phenomenological model for the X-ray spectrum of Nova V2491 Cygni
Ciro Pinto, Jan-Uwe Ness, Frank Verbunt +3
The X-ray flux of Nova V2491 Cyg reached a maximum some forty days after optical maximum. The X-ray spectrum at that time, obtained with the RGS of XMM-Newton, shows deep, blue-shi…
Measuring X-ray variability in faint/sparsely-sampled AGN
V. Allevato, M. Paolillo, I. Papadakis +1
We study the statistical properties of the Normalized Excess Variance of variability process characterized by a red-noise power spectral density (PSD), as the case of Active Galact…