Coronal ejections from convective spherical shell dynamos
J\"orn Warnecke (1, 2), Petri J. K\"apyl\"a (1, 3) Maarit. J., Mantere (3), and Axel Brandenburg (1, 2) ((1) Nordita, (2) Stockholm, University, (3) Helsinki University)
TL;DR
This paper introduces a 3D model of rotating convection with a simplified corona in spherical coordinates, demonstrating how magnetic fields generated in the convection zone are sporadically ejected into the corona.
Contribution
It presents a novel combined model of rotating convection and a simplified corona, capturing magnetic field generation and ejection in a spherical setup.
Findings
Magnetic fields are generated by convection motions.
Magnetic ejections occur sporadically into the corona.
The model includes density stratification and is approximately isothermal.
Abstract
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.
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