Sign on

SAO/NASA ADS Astronomy Abstract Service


· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· arXiv e-print (arXiv:1304.1938)
· References in the article
· Citations to the Article (5) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Transfer of Energy, Potential, and Current by Alfvén Waves in Solar Flares
Authors:
Melrose, D. B.; Wheatland, M. S.
Affiliation:
AA(Sydney Institute for Astronomy, School of Physics, University of Sydney), AB(Sydney Institute for Astronomy, School of Physics, University of Sydney)
Publication:
Solar Physics, Volume 288, Issue 1, pp.223-240 (SoPh Homepage)
Publication Date:
11/2013
Origin:
SPRINGER
Keywords:
Solar flares, Alfvén waves, Electron acceleration
Abstract Copyright:
(c) 2013: Springer Science+Business Media Dordrecht
DOI:
10.1007/s11207-013-0305-9
Bibliographic Code:
2013SoPh..288..223M

Abstract

Alfvén waves play three related roles in the impulsive phase of a solar flare: they transport energy from a generator region to an acceleration region; they map the cross-field potential (associated with the driven energy release) from the generator region onto the acceleration region; and within the acceleration region they damp by setting up a parallel electric field that accelerates electrons and transfers the wave energy to them. The Alfvén waves may also be regarded as setting up new closed-current loops, with field-aligned currents that close across field lines at boundaries. A model is developed for large-amplitude Alfvén waves that shows how Alfvén waves play these roles in solar flares. A picket-fence structure for the current flow is incorporated into the model to account for the "number problem" and the energy of the accelerated electrons.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

  New!

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints