X-ray observations of filament eruption in the 1980 May 21 flare

Details X-ray observations of filament eruption in the 1980 May 21 flare X-ray observations of filament eruption in the 1980 May 21 flare

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991soph..135...99b&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 135, Sept. 1991, p. 99-105. Research supported by Universities Space Research Association.

Physics

5

High Temperature Plasmas, Solar Flares, Solar Magnetic Field, Solar Prominences, Solar X-Rays, Current Sheets, Magnetic Field Reconnection, Solar Physics

Scientific paper

X-ray and H-alpha observations of an erupting filament and other observations of the associated flare on May 21, 1980 suggest that an erupting filament played a major role in the X-ray flare. While Antonucci et al. (1985) analyzed the May 21 flare as one of the best cases of chromospheric evaporation, the possible contribution from X-ray emitting erupting plasma has been ignored. It is that preheated plasma existed and may have contributed part of the blue-shifted X-ray emission observed in the Ca XIX line, which was formerly attributed solely to chromospheric evaporation. Thus it remains an open question - in two-ribbon flares in particular - just how important chromospheric evaporation is in flare dynamics.

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