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2011MNRAS.415.2323I - Mon. Not. R. Astron. Soc., 415, 2323-2335 (2011/August-2)
A physical model for the continuum variability and quasi-periodic oscillation in accreting black holes.
INGRAM A. and DONE C.
Abstract (from CDS):
We fit this total model of the variability to a sequence of five observed power spectra from the bright black hole binary XTE J1550-564 as the source transitioned from a low/hard to very high state. This is the first time that a power spectrum from a black hole binary has been fit with a physical model for the variability. The data are well fit if the inner radius of the flow remains constant, while the outer radius sweeps inwards from ∼ 75 to 12 gravitational radii. This range of radii is the same range as required by models of the energy spectral evolution, giving the first self-consistent description of the evolution of both the spectrum and variability of black hole binaries.
Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS
Journal keyword(s): accretion, accretion discs - X-rays: binaries - X-rays: individual: XTE J1550-584
Simbad objects: 3
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