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A rotating and magnetized three-dimensional hot plasma equilibrium in a gravitational field

Part of: Focus on Plasma Astrophysics

Published online by Cambridge University Press:  01 April 2015

Peter J. Catto  and
Sergei I. Krasheninnikov
Peter J. Catto*
Affiliation:
Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Sergei I. Krasheninnikov
Affiliation:
Department of Mechanical & Aerospace Engineering, University of California San Diego, La Jolla, CA 92093, USA
*
†Email address for correspondence: catto@psfc.mit.edu
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Abstract

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A rotating and magnetized three-dimensional axisymmetric equilibrium for hot plasma confined by a gravitational field is found. The plasma density and current can exhibit strong equatorial plane localization, resulting in disk equilibria with open magnetic field lines. The associated equatorial plane pinching results in magnetic field flaring, implying a strong gravitational squeezing of the plasma carrying ambient magnetic field lines toward the gravitational source. At high plasma pressure, the magnetic field becomes strongly radial outside the disk. The model predicts the rotation frequency bound, the condition for a plasma disk, and the requirement for strong magnetic field flaring.

Type
Letter
Information
Journal of Plasma Physics , Volume 81 , Issue 3 , June 2015 , 105810301
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Copyright
Copyright © Cambridge University Press 2015 

References

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