Magnetostatic equilibria for coronal loops on rotating stars

Details Magnetostatic equilibria for coronal loops on rotating stars Magnetostatic equilibria for coronal loops on rotating stars

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991soph..131..269j&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 131, Feb. 1991, p. 269-289.

Physics

11

Coronal Loops, Magnetostatic Fields, Plasma Pressure, Stellar Magnetic Fields, Stellar Rotation, Centrifugal Force, Stellar Gravitation, Stellar Temperature, Stellar Winds

Scientific paper

Results are presented on a study of magnetostatic equilibria for coronal loops embedded in a potential magnetic field on a rotating star. It is shown that, for any given star, there is a maximum value of plasma pressure inside a single loop, above which no equilibrium exists. This maximum internal pressure depends on the ratio of the temperature inside the loop and that outside the loop and on the ratio of the plasma pressure to the magnetic pressure at the base of the external field. It is also found that the strength and the scale of the field external to the flux tube are the most important factors in determining its maximum height.

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