Radiative Processes, Spectral States and Variability of Black-Hole Binaries(Session 4 : Theoretical/Numerial Approaches to the Accretion Physics)

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概要

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• We review radiative processes responsible for X-ray emission in hard (low) and soft (high) spectral states of black-hole binaries. The main process in the hard state appears to be scattering of blackbody photons from a cold disk by thermal electrons in a hot inner flow, and any contribution from nonthermal synchrotron emission is at most small. In the soft states, blackbody disk emission dominates energetically, and its high-energy tail is due to scattering by hybrid, thermal/nonthermal electrons, probably in active regions above the disk surface. State transitions appear to correspond to a variable inner radius of the cold disk driven by changes of the accretion rate. The existence of two accretion solutions, hot and cold, in a range of the accretion rate leads to hysteresis in low-mass X-ray binaries.

• 理論物理学刊行会の論文
• 2004-11-15

著者

• GIERLINSKI Marek

  Department of Physics, University of Durham

• Gierlinski Marek

  Department Of Physics University Of Durham:obserwatorium Astronomiczne Uniwersytetu Jagiellonskiego

• ZDZIARSKI Andrzej

  Centrum Astronomiczne im. Mikotaja Kopernika

• GIERLINSKI Marek

  Department of Physics, University of Durham:Obserwatorium Astronomiczne Uniwersytetu Jagiellonskiego

関連論文

• Spectral Transitions in X-Ray Binaries(Session 1 : Galactic BH Binaries)
• Radiative Processes, Spectral States and Variability of Black-Hole Binaries(Session 4 : Theoretical/Numerial Approaches to the Accretion Physics)
• Spectral Transitions in X-Ray Binaries(Session 1 : Galactic BH Binaries)
• Radiative Processes, Spectral States and Variability of Black-Hole Binaries(Session 4 : Theoretical/Numerial Approaches to the Accretion Physics)

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