Journal Article

Effects of the stress evolution process on the thermal stability of thin accretion discs

Da-Bin Lin, Wei-Min Gu and Ju-Fu Lu

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 415, issue 3, pages 2319-2322
Published in print August 2011 | ISSN: 0035-8711
Published online August 2011 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.18856.x
Effects of the stress evolution process on the thermal stability of thin accretion discs

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The stress evolution process is taken into account in the linear stability analysis of standard thin accretion discs. We find that the growth rate of thermally unstable modes can decrease significantly owing to the stress delay, which may help to understand the quasi-periodic variability of GRS 1915+105. We also discuss the possible application of stress evolution to the stability of the Shapiro–Lightman–Eardley disc.

Keywords: accretion, accretion discs; hydrodynamics; instabilities

Journal Article.  2625 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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