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Transient behavior of a flare-associated solar wind. I - Gas dynamics in a radial open field regionA numerical investigation is conducted into the way in which a solar wind model initially satisfying both steady state and energy balance conditions is disturbed and deformed, under the assumption of heating that correspoonds to the energy release of solar flares of an importance value of approximately 1 which occur in radial open field regions. Flare-associated solar wind transient behavior is modeled for 1-8 solar radii. The coronal temperature around the heat source region rises, and a large thermal conductive flux flows inward to the chromosphere and outward to interplanetary space along field lines. The speed of the front of expanding chromospheric material generated by the impingement of the conduction front on the upper chromosphere exceeds the local sound velocity in a few minutes and eventually exceeds 100 million cm/sec.
Document ID
19840041504
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Nagai, F. (NASA Marshall Space Flight Center Space Science Laboratory, Huntsville, AL, United States)
Date Acquired
August 12, 2013
Publication Date
February 1, 1984
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 277
ISSN: 0004-637X
Subject Category
SOLAR PHYSICS
Distribution Limits
Public
Copyright
Other