Data Centre for Astrophysics
Astronomy Department of the University of Geneva
ISDC Seminar

Wednesday, 2 November 2005 at 11:00

Andrzej A. Zdziarski
N. Copernicus Astronomical Center, Poland

Spectra and variability of black-hole binaries

Abstract. I will review spectral states and state transitions of black hole binaries and their theoretical accretion and jet models. Of particular interest are luminosities close to the Eddington achieved in the hard (also called low) state, and hysteresis of the transtions. Then I will discuss modelling of variability properties of Cyg X-1 and other black hole binaries, including energy-dependent rms, power spectra, spectral variability patterns and various spectral-timing correlations.

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