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Lower hybrid resonance acceleration of electrons and ions in solar flares and the associated microwave emissionThe particle acceleration processes here studied are driven by the relaxation of unstable ion ring distributions; these produce strong wave activity at the lower hybrid resonance frequency which collapses, and forms energetic electron and ion tails. The results obtained are applied to the problem posed by the production of energetic particles by solar flares. The numerical simulation results thus obtained by a 2 1/2-dimensional particle-in-cell code show a simultaneous acceleration of electrons to 10-500 keV energies, and of ions to as much as the 1 MeV range; the energy of the latter is still insufficient to account for gamma-ray emission in the 4-6 MeV range, but furnish a seed population for further acceleration.
Document ID
19930053271
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mcclements, K. G.
(Culham Lab. Abingdon, United Kingdom)
Bingham, R.
(Rutherford Appleton Lab. Didcot, United Kingdom)
Su, J. J.
(National Central Univ. Chungli, Taiwan)
Dawson, J. M.
(California Univ. Los Angeles, United States)
Spicer, D. S.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 16, 2013
Publication Date
May 20, 1993
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 409
Issue: 1
ISSN: 0004-637X
Subject Category
Solar Physics
Accession Number
93A37268
Funding Number(s)
CONTRACT_GRANT: EEC-SC1-CT920773
CONTRACT_GRANT: NATO-CGR-910316
CONTRACT_GRANT: NSF PHY-91-21052
Distribution Limits
Public
Copyright
Other

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