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X-ray variability of accreting black hole systems: propagating-fluctuation scenario

Published online by Cambridge University Press:  01 August 2006

Patricia Arévalo ,
Phil Uttley  and
Ian McHardy
Patricia Arévalo
Affiliation:
University of Southampton, Southampton, SO17 1DH, UK email: [email protected]
Phil Uttley
Affiliation:
University of Southampton, Southampton, SO17 1DH, UK email: [email protected]
Ian McHardy
Affiliation:
University of Southampton, Southampton, SO17 1DH, UK email: [email protected]
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Abstract

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Propagating fluctuation models can reproduce fundamental properties of the variability observed in the X-ray light curves of accreting black hole systems. We explore this type of model and show how extended emitting regions introduce at the same time energy dependent power spectral densities (PSD) and time lags between different energy bands.

Keywords

Galaxies: active – X-rays: binariesgalaxies – accretion disks
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S238: Black Holes from Stars to Galaxies – Across the Range of Masses , August 2006 , pp. 319 - 320
Copyright
Copyright © International Astronomical Union 2007

References

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Uttley, P. & McHardy, I. 2001, MNRAS 323, 26CrossRefGoogle Scholar