Generic model for magnetic explosions applied to solar flares

Details Generic model for magnetic explosions applied to solar flares Generic model for magnetic explosions applied to solar flares

2012-02-07

arxiv.org/abs/1202.1361v1

Astrophysical Journal 748 (March 20, 2012)

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Scientific paper

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 Alfv\'enically 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.

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