SMM 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.
Evidence for explosive chromospheric evaporation in a solar flare observed with SMM
Advances in Space Research ; 6 , 6 19
1986-01-01
Miscellaneous
No indication
English
Observational Evidence of Gentle and Explosive Chromospheric Evaporation
British Library Conference Proceedings | 2006
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