Physics
Scientific paper
Aug 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984soph...94..171s&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 94, Aug. 1984, p. 171-192.
Physics
45
Coronal Loops, Solar Corona, Solar Flares, Solar Maximum Mission, X Ray Imagery, Arches, H Alpha Line
Scientific paper
Extensive postflare coronal arches were observed with the aid of the Hard X-ray Imaging Spectrometer aboard the Solar Maximum spacecraft on May 22, 1980 and November 6, 1980. The arches follow the occurrence of a major two-ribbon flare on the sun, reach altitudes in excess of 150,000 km in the solar corona, and can be seen in X-rays above 3.5 keV for ten hours or more. The arch on November 6, 1980, following the major flare at 03:26 UT that day, seemed to be a moving feature and revived twice, at 14:40 UT on November 6 and at approximately 04:40 UT on November 7. The present investigation is concerned with this sequence of the revived arches. Attention is given to the time variations of the brightness of the coronal arch, the arch motions, the energy contents and mass of the revived arch, the structure of the arch, the postflare velocity pattern, and the interpretation of the observations.
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