Global magnetohydrostatic fields in stellar atmosphere

Details Global magnetohydrostatic fields in stellar atmosphere Global magnetohydrostatic fields in stellar atmosphere

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984gapfd..28..141b&link_type=abstract

Geophysical and Astrophysical Fluid Dynamics (ISSN 0309-1929), vol. 28, March 1984, p. 141-160. Research supported by the Scienc

Physics

Fluid Dynamics

2

Magnetohydrostatics, Stellar Atmospheres, Stellar Flares, Stellar Magnetic Fields, Force-Free Magnetic Fields, Magnetic Dipoles, Quadrupoles, Stellar Models

Scientific paper

Stellar flares may be caused by the global instability of a magnetic field in the atmosphere. The present investigation is concerned with such global magnetic configurations, taking into account the magnetostatic equilibrium of the global field of a star, which may be rotating. Attention is given to a force-free dipole-like field, a magnetostatic dipole-like field, and a force-free quadrupole field. Solutions are obtained to the equations which describe the magnetostatic equilibrium of an axisymmetric stellar magnetic field for the linear case. The properties of the solutions are studied in detail, and a slow evolution is modeled through a series of equilibria by examining the effects of changing the parameters of the solutions.

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