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Evidence for explosive chromospheric evaporation in a solar flare observed with SMMSMM soft X-ray data and Sacramento Peak Observatory H-alpha observations are combined in a study of the impulsive phase of a solar flare. A blue asymmetry, indicative of upflow motions, was observed in the coronal Ca XIX line during the soft X-ray rise phase. H-alpha redshifts, indicative of downward motions, were observed simultaneously in bright flare kernels during the period of hard X-ray emission. It is shown that, to within observational errors, the impulsive phase momentum transported by the upflowing soft X-ray plasma is equivalent to that of the downward moving chromospheric material.
Document ID
19870052734
Document Type
Reprint (Version printed in journal)
Authors
Zarro, D. M. (Applied Research Corp. Landover, MD, United States)
Saba, J. L. R. (Applied Research Corp. Landover, MD, United States)
Strong, K. T. (Lockheed Research Laboratories Palo Alto, CA, United States)
Canfield, R. C. (Hawaii, University Honolulu, United States)
Metcalf, T. (California, University San Diego, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Advances in Space Research
Volume: 6
Issue: 6 19
ISSN: 0273-1177
Subject Category
SOLAR PHYSICS
Funding Number(s)
CONTRACT_GRANT: NAS5-28713
CONTRACT_GRANT: NAG5-744
CONTRACT_GRANT: NSF AST-85-96022
Distribution Limits
Public
Copyright
Other