ENGLISH

Numerical Simulation of Viscous Shocked Accretion Flows Around Black Holes

By Kinsuk Giri

Book information

Publisher
Springer
Year
2014
ISBN
3319095390, 9783319095394
Language
english
Format
PDF
Filesize
5 MB (5544889 bytes)
Series
Springer Theses
Edition
2015
Pages
129\148
Scanned
yes
Time added
2014-09-08 17:13:45
Физика;Астрономия и астрофизика;Астрофизика;Астроф

Description

The work developed in this thesis addresses very important and relevant issues of accretion processes around black holes. Beginning by studying the time variation of the evolution of inviscid accretion discs around black holes and their properties, the author investigates the change of the pattern of the flows when the strength of the shear viscosity is varied and cooling is introduced. He succeeds to verify theoretical predictions of the so called Two Component Advective Flow (TCAF) solution of the accretion problem onto black holes through numerical simulations under different input parameters. TCAF solutions are found to be stable. And thus explanations of spectral and timing properties (including Quasi-Period Oscillations, QPOs) of galactic and extra-galactic black holes based on shocked TCAF models appear to have a firm foundation.

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