High-resolution spectral observation during the impulsive phase of flare

Details High-resolution spectral observation during the impulsive phase of flare High-resolution spectral observation during the impulsive phase of flare

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994soph..149..195j&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 149, no. 1, p. 195-203

Physics

13

Asymmetry, Fine Structure, H Alpha Line, Line Shape, Solar Flares, High Resolution, Solar Observatories, Spectrographs, Telescopes

Scientific paper

High-resolution observations of the flare on October 21, 1989 were made with the Domeless Solar Telescope of the Hida Observatory. The following new results have been obtained: (a) during the impulsive phase of the flare, the spectral line asymmetry has spatial fine structures of 1 sec - 2 sec; (b) for several points in the flare region the line profile alternatively changes between blue asymmetry and red asymmetry within a few seconds. A possible explanation has been suggested.

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