HR: 1340h
AN: SM53B-1278    [Abstracts]
TI: Impulsive Flare Energy Transport by Large-Scale Alfven Waves and the Electron Acceleration Problem
AU: * Fletcher, L
EM: lyndsay@astro.gla.ac.uk
AF: University of Glasgow, Kelvin Building, Glasgow, CA G128QQ, United Kingdom
AU: HUDSON, H S
EM: hhudson@ssl.berkeley.edu
AF: SSL/UCB, 7 Gauss Way, Berkeley, CA 94720-7450, United States
AB: In this poster, we investigate an alternative scenario for solar flare energy transport. Usually, the energy stored in the solar corona and released during a flare is thought to be transported to the lower atmosphere by electron beams. However, based on microwave observations, magnetic fields of the order of a few 100 Gauss to a kilogauss are measured in the corona above the core of an active region. This implies an Alfvén speed on the order of 0.1c, meaning that Alfvén wave pulses become plausible agents for transporting the stored energy of the flare. We investigate this scenario, and the opportunities it presents for both heating the lower chromosphere and accelerating electrons to HXR-emitting energies.
DE: 7507 Chromosphere
DE: 7519 Flares
DE: 7524 Magnetic fields
DE: 7845 Particle acceleration
DE: 7859 Transport processes
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Fall Meeting