Recent results from simulations of the magnetorotational instability

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish (US)
Title of host publicationAdvances in Plasma Astrophysics
EditorsAlfio Bonanno, Elisabete de Gouveia Dal Pino, Alexander Kosovichev
Pages422-428
Number of pages7
EditionS274
DOIs
StatePublished - Sep 1 2010

Publication series

NameProceedings of the International Astronomical Union
NumberS274
Volume6
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

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  • Cite this

    Stone, J. M. (2010). Recent results from simulations of the magnetorotational instability. In A. Bonanno, E. de Gouveia Dal Pino, & A. Kosovichev (Eds.), Advances in Plasma Astrophysics (S274 ed., pp. 422-428). (Proceedings of the International Astronomical Union; Vol. 6, No. S274). https://doi.org/10.1017/S174392131100740X