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Three-dimensional magnetized and rotating hot plasma equilibrium and stability in a gravitational field

Peter J. Catto ; Sergei I. Krasheninnikov ; István Pusztai (Institutionen för teknisk fysik, Nukleär teknik)
Europhysics Conference Abstracts Vol. 39E (2015), p. O2.401.
[Konferensbidrag, refereegranskat]

We present analytic solutions for three-dimensional magnetized axisymmetric equilibria confining rotating hot plasma in a gravitational field. Our solution to the full Grad-Shafranov equation can exhibit strong equatorial plane localization of the plasma density and current, resulting in disk equilibria for the plasma density. Unlike in [P.J. Catto et al, 2015, J. Plasma Physics 81, 105810301], we find a toriodal magnetic field is necessary to find a equilibrium in the presence of gravity for most cases of interest. We expect our results to provide impetus to re-investigate magneto-rotational stability.

Nyckelord: plasma equilibrium, Grad-Shafranov equation, accretion disk



Denna post skapades 2015-08-12. Senast ändrad 2016-09-26.
CPL Pubid: 220531

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Nukleär teknik (2006-2015)

Ämnesområden

Rymdfysik
Plasmafysik
Astronomi, astrofysik och kosmologi

Chalmers infrastruktur