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Discrete events and solar wind energizationBased on a multiple-magnetic-reconnection picture, an estimation of the energy flux suggests that small-scale EUV exploding events may contribute a significant amount of energy (of order of 100,000 erg/sq cm sec) to solar atmospheric heating and solar-wind acceleration. Most of the dissipated magnetic energy is converted into thermal energy and plasma turbulence. On a related aspect, a numerical study based on the nonlinear one-fluid hydrodynamic equations shows a self-smoothing effect, whereby a multistream structure of the solar wind formed near the sun can be gradually smoothed during its propagation through interplanetary space. This calculation gives support for the possible contribution of discrete energetic events to high-speed solar wind streams.
Document ID
19890059299
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Yang, W.-H.
(Utah State Univ. Logan, UT, United States)
Schunk, R. W.
(Utah State University Logan, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1989
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 343
ISSN: 0004-637X
Subject Category
Solar Physics
Accession Number
89A46670
Funding Number(s)
CONTRACT_GRANT: F49620-86-C-0109
CONTRACT_GRANT: NAGW-77
Distribution Limits
Public
Copyright
Other

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