Signatures of Accretion Shocks in Broadband Spectrum of Advective Flows Around Black Holes

Details Signatures of Accretion Shocks in Broadband Spectrum of Advective Flows Around Black Holes Signatures of Accretion Shocks in Broadband Spectrum of Advective Flows Around Black Holes

2005-01-14

arxiv.org/abs/astro-ph/0501279v1

Int.J.Mod.Phys. D14 (2005) 933-946

Astronomy and Astrophysics

Astrophysics

14 pages, 6 figures, Int. J. Mod. Phys. (in press)

Scientific paper

10.1142/S0218271805006778

We compute the effects of the centrifugal pressure supported shock waves on the emitted spectrum from an accretion disk primarily consisting of low angular momentum matter. Electrons are very efficiently accelerated by the accretion shock and acquire power-law distribution. The accelerated particles in turn emit synchrotron radiation in presence of a stochastic magnetic field in equipartition with the gas. Efficient cooling of the electrons by these soft photons reduces its temperature in comparison to the protons. We explore the nature of the broadband spectra by using Comptonization, bremsstrahlung and synchrotron emission. We then show that there could be two crossing points in a broadband spectrum, one near $\sim 10 keV$ and the other $\sim 300-400$KeV.

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