Recent results from simulations of the magnetorotational instability

James McLellan Stone

doi:10.1017/S174392131100740X

Recent results from simulations of the magnetorotational instability

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The nonlinear saturation of the magnetorotational instability (MRI) is best studied through numerical MHD simulations. Recent results of simulations that adopt the local shearing box approximation, and fully global models that follow the entire disk, are described. Outstanding issues remain, such as a first-principles understanding of the dynamo processes that control saturation with no net magnetic flux. Important directions for future work include a better understanding of basic plasma processes, such as reconnection, dissipation, and particle acceleration, in the MHD turbulence driven by the MRI.

Original language	English (US)
Title of host publication	Advances in Plasma Astrophysics
Editors	Alfio Bonanno, Elisabete de Gouveia Dal Pino, Alexander Kosovichev
Pages	422-428
Number of pages	7
Edition	S274
DOIs	https://doi.org/10.1017/S174392131100740X
State	Published - Sep 2010

Publication series

Name	Proceedings of the International Astronomical Union
Number	S274
Volume	6
ISSN (Print)	1743-9213
ISSN (Electronic)	1743-9221

All Science Journal Classification (ASJC) codes

Medicine (miscellaneous)
Astronomy and Astrophysics
Nutrition and Dietetics
Public Health, Environmental and Occupational Health
Space and Planetary Science

Keywords

MHD
accretion disks
instabilities
methods:numerical
plasmas
turbulence

Access to Document

10.1017/S174392131100740X

Cite this

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abstract = "The nonlinear saturation of the magnetorotational instability (MRI) is best studied through numerical MHD simulations. Recent results of simulations that adopt the local shearing box approximation, and fully global models that follow the entire disk, are described. Outstanding issues remain, such as a first-principles understanding of the dynamo processes that control saturation with no net magnetic flux. Important directions for future work include a better understanding of basic plasma processes, such as reconnection, dissipation, and particle acceleration, in the MHD turbulence driven by the MRI.",

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Recent results from simulations of the magnetorotational instability. / Stone, James McLellan.
Advances in Plasma Astrophysics. ed. / Alfio Bonanno; Elisabete de Gouveia Dal Pino; Alexander Kosovichev. S274. ed. 2010. p. 422-428 (Proceedings of the International Astronomical Union; Vol. 6, No. S274).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - The nonlinear saturation of the magnetorotational instability (MRI) is best studied through numerical MHD simulations. Recent results of simulations that adopt the local shearing box approximation, and fully global models that follow the entire disk, are described. Outstanding issues remain, such as a first-principles understanding of the dynamo processes that control saturation with no net magnetic flux. Important directions for future work include a better understanding of basic plasma processes, such as reconnection, dissipation, and particle acceleration, in the MHD turbulence driven by the MRI.

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Recent results from simulations of the magnetorotational instability

Abstract

Publication series

All Science Journal Classification (ASJC) codes

Keywords

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