Coronal ejections from convective spherical shell dynamos
  We present a three-dimensional model of rotating convection combined with a simplified corona in spherical coordinates. The motions in the convection zone generate a large-scale magnetic field that gets sporadically ejected into the outer layers above. Our model corona is approximately isothermal, but it includes density stratification due to gravity. 
J\"orn Warnecke (1 and 2), Petri J. K\"apyl\"a (1 and 3) Maarit. J.   Mantere (3), and Axel Brandenburg (1 and 2) ((1) Nordi...
astro-ph.SR