Generic Model for Magnetic Explosions Applied to Solar Flares
Abstract
An accepted model for magnetospheric substorms is proposed as the basis for a generic model for magnetic explosions and is applied to solar flares. The model involves widely separated energy-release and particle-acceleration regions, with energy transported Alfvénically between them. On a global scale, these regions are coupled by a large-scale current that is set up during the explosion by redirection of pre-existing current associated with the stored magnetic energy. The explosion-related current is driven by an electromotive force (EMF) due to the changing magnetic flux enclosed by this current. The current path and the EMF are identified for an idealized quadrupolar model for a flare.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- April 2012
- DOI:
- arXiv:
- arXiv:1202.1361
- Bibcode:
- 2012ApJ...749...58M
- Keywords:
-
- acceleration of particles;
- magnetic fields;
- magnetic reconnection;
- Sun: flares;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- Astrophysical Journal 748 (March 20, 2012)