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Solar flare energeticsA review is presented regarding the current knowledge of the energetics of solar flares. Recent observations by the Solar Maximum Mission and by balloon-borne instrumentation indicate that the flare hard X-ray emission arises from nonthermal bremsstrahlung - the collisions of fast electrons into a cold ambient medium (Ee much greater than kT). Under this interpretation, most of the energy released for many flares is initially contained in the energetic electrons. These electrons can produce most of the observed flare phenomena via interactions with the solar atmosphere. In large flares a shock wave may result from explosive heating of the solar atmosphere by these electrons. This shock wave can accelerate nuclei to relativistic energies. It is argued that recent SMM observations of fast gamma-ray bursts are consistent with this picture of shock acceleration of nuclei.
Document ID
19830038817
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Lin, R. P.
(California, University Berkeley, CA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Solar Physics
Meeting Information
Meeting: Gamma ray transients and related astrophysical phenomena; Workshop
Location: La Jolla, CA
Start Date: August 5, 1981
End Date: August 8, 1981
Sponsors: U. S. Department of Energy
Accession Number
83A20035
Funding Number(s)
CONTRACT_GRANT: NSF ATM-79-24559
CONTRACT_GRANT: NSG-7527
CONTRACT_GRANT: NAS5-25980
Distribution Limits
Public
Copyright
Other

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