Studies on post-flare loop prominence of 1981 April 27

Details Studies on post-flare loop prominence of 1981 April 27 Studies on post-flare loop prominence of 1981 April 27

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.153...95h&link_type=abstract

Astrophysics and Space Science, Volume 153, Issue 1, pp.95-108

Astronomy and Astrophysics

Astrophysics

5

Scientific paper

By use of the Hα observations of the Astrophysical Observatory in Catania, Italy and the Purple Mountain Observatory in Nanking, China as well as hard X-ray and gamma-ray burst data from the Solar Maximum Mission (SMM) Gamma-Ray Spectrometer (GRS), a major eruptive loop prominence was studied during the limb solar flare event of 1981 April 27. Our preliminary analysis shows that there seems to exist a second abrupt energy release for this event, almost 20 min after the end of the impulsive phase of the flare. This energy release is probably associated with the rapidity in upward motion or activation of the loop prominence. A possible candidate for such a process could be the reconnection of the old magnetic field with a newly emerging magnetic field. A theoretical gross estimate for the energy release and particle acceleration has also been made in this work. It appears that the proposed model for charged particle acceleration is very efficient.

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