Paradoxes of magnetorotational instability and their geometrical resolution

Oleg Kirillov, Frank Stefani

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)
3 Downloads (Pure)

Abstract

Magnetorotational instability (MRI) triggers turbulence and enables outward transport of angular momentum in hydrodynamically stable accretion discs. By using the WKB approximation and methods of singular function theory, we resolve two different paradoxes of MRI that appear in the limits of infinite and vanishing magnetic Prandtl number. For the latter case, we derive a strict limit of the critical Rossby number.
Original languageEnglish
Pages (from-to)036304
JournalPhysical Review E
Volume84
Issue number3
DOIs
Publication statusPublished - 7 Sep 2011

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