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Prompt particle acceleration around moving X-point magnetic field during impulsive phase of solar flaresWe present a model for high-energy solar flares to explain prompt proton and electron acceleration, which occurs around moving X-point magnetic field during the implosion phase of the current sheet. We derive the electromagnetic fields during the strong implosion phase of the current sheets, which is driven by the converging flow derived from the magnetohydrodynamic equations. It is shown that both protons and electrons can be promptly (within 1 second) accelerated to approximately 70 MeV and approximately 200 MeV, respectively. This acceleration mechanism can be applicable for the impulsive phase of the gradual gamma ray and proton flares (gradual GR/P flare), which have been called two-ribbon flares.
Document ID
19920012705
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sakai, Jun-Ichi
(Toyama Univ.)
Date Acquired
September 6, 2013
Publication Date
February 1, 1992
Publication Information
Publication: NASA. Goddard Space Flight Center, The Compton Observatory Science Workshop
Subject Category
Solar Physics
Accession Number
92N21948
Funding Number(s)
CONTRACT_GRANT: ASR-ME-03640247
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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