Journal Article

Magnetohydrodynamic instability in differentially rotating compressible flow

Mradul Sharma

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 391, issue 3, pages 1369-1372
Published in print December 2008 | ISSN: 0035-8711
Published online November 2008 | e-ISSN: 1365-2966 | DOI:
Magnetohydrodynamic instability in differentially rotating compressible flow

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Transport of angular momentum is one of the thrust areas of astrophysical flows. Instabilities and hence the turbulence generated by it have been invoked to understand its role in angular momentum transport in hydrodynamic and magnetohydrodynamic regime. Investigation of an unexplored region described by the parameter space Ω2e < 0, Ωe being the epicyclic frequency, resulted in a powerful magnetohydrodynamic instability. The growth rate of this instability is rather large and is found to depend on the wavenumber.

Keywords: accretion, accretion discs; MHD; turbulence

Journal Article.  2388 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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