Antonucci et al. (1985) have presented observations of the large two-ribbon flare of May 21, 1980 and interpreted the Ca XIX X-ray line profiles, hard X-ray observations, and X-ray images to support the standard model of electron-beam-driven chromospheric evaporation. Here it is shown that an active filament which erupted at flare onset can also explain the observations, and that a closer look at the evidence of Antonucci et al. leads to discrepancies with the chromospheric evaporation model.
Evidence against chromospheric evaporation from the 21 May 1980 flare
Advances in Space Research ; 6 , 6 19
1986-01-01
Miscellaneous
No indication
English
Sequential chromospheric brightenings: The case for chromospheric evaporation
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