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Fingerprints of hot accretion in X-ray binaries
  Nordita Astrophysics seminars

Thursday 28 August 2014
from 13:30 to 14:15
at 122:026
Speaker : Alexandra Veledina (University of Oulu)
Abstract : Accreting black hole binaries have been in focus of the X-ray telescopes for the last half a century. Yet, radiative mechanisms leading to a formation of the high energy photons along with the accretion flow geometry in these objects are still being debated. Recent discovery of complex interconnection of the optical and X-ray light-curves opened a new path to explore physical processes operating in these objects. A number of observables such as high optical luminosity, rapid variability and presence of quasi-periodic oscillations at these wavelengths as well as complex optical/X-ray cross-correlation cannot be explained in terms of the standard accretion disc model. I will describe how the whole set of these properties can be explained in terms of the hot accretion flow model.

Nordita  | Last modified 25 August 2014 09:22  |  HELP