Theory of solar prominences
Abstract
We discuss the physical mechanisms for the formation, the gravitational support, and the eruption of solar prominences and filaments. We show that the formation of cool mass in the corona is due to the thermal non-equilibrium of coronal loops that are heated preferentially near their footpoints. The gravitational support can be understood as a direct consequence of the differential shearing of a three-dimensional magnetic field. Finally, the eruption can be explained by the "breakout" model, in which magnetic reconnection leads to the explosive expansion of the sheared prominence field. We present results from numerical simulations which confirm each of these three fundamental mechanisms. Based on this work, we conclude that we are now approaching a true understanding of the basic physics of solar prominences.
- Publication:
-
The Sun and Sun-Like Stars
- Pub Date:
- 2000
- Bibcode:
- 2000ssls.work...73A
- Keywords:
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- Solar Prominences;
- Filament Eruptions;
- Magnetic Reconnection