A rotating and magnetized three-dimensional hot plasma equilibrium in a gravitational field. (1st April 2015)

• Record Type: Journal Article
• Authors: Catto, Peter J.; Krasheninnikov, Sergei I.
• Is Part Of: Journal of plasma physics. Volume 81:Number 3(2015:Jun.)
• Publication Date: 2015-04-01
• Subjects: Plasma (Ionized gases) -- Periodicals; 530.4405
• DOI: 10.1017/S002237781500029X
• Languages: English
• ISSNs: 0022-3778

Abstract

Abstract : 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.