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.

References in corpus (8)

• Impulsive phase flare energy transport by large-scale Alfven waves and the electron acceleration problem
• Implications of X-ray Observations for Electron Acceleration and Propagation in Solar Flares
• Recent Advances in Understanding Particle Acceleration Processes in Solar Flares
• Deducing Electron Properties From Hard X-Ray Observations
• Response of the Photospheric Magnetic Field to the X2.2 Flare on 2011 February 15
• The Relationship Between Solar Radio and Hard X-ray Emission
• Gas-dynamic shock heating of post-flare loops due to retraction following localized, impulsive reconnection
• Magnetic explosions: role of the inductive electric field

Cited by in corpus (8)

• A Classification Scheme For Turbulent Acceleration Processes In Solar Flares
• Electric Current Circuits in Astrophysics
• Current-driven flare and CME models
• Bulk Energization of Electrons in Solar Flares by Alfvén Waves
• A Survey of Changes in Magnetic Helicity Flux on the Photosphere During Relatively Low Class Flares
• Magnetic explosions: role of the inductive electric field
• Transfer of Energy, Potential, and Current by Alfvén Waves in Solar Flares
• Rethinking the solar flare paradigm