A model of slingshot prominences in rapidly rotating stars
作者： J. M. Ferreira
DOI: 10.1046/J.1365-8711.2000.03540.X
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摘要: We study the stability of an equilibrium model prominences in rapidly rotating stars. A prominence is represented by axisymmetric equatorial current sheet embedded a massless and perfectly conducting coronal plasma. There between gravity, centrifugal force Lorentz acting on prominence. The energy method Bernstein et al., form presented Lepeltier & Aly, used to derive sufficient conditions. Using existing observational values for masses, dimensions locations prominences, we find that surface fields few hundred Gauss are required hold them stable equilibrium. free magnetic present models feed medium-sized flares but probably not very energetic ones. We discuss question what makes stellar so different from their solar counterparts allows be detected. also examine role corotation radius formation.
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