Recurrent mass ejections associated with flare behind the limb on 1978 December 20

Details Recurrent mass ejections associated with flare behind the limb on 1978 December 20 Recurrent mass ejections associated with flare behind the limb on 1978 December 20

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984basi...12..162j&link_type=abstract

Astronomical Society of India, Bulletin, vol. 12, June 1984, p. 162-171.

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Mass Transfer, Solar Flares, Solar Spectra, Type 2 Bursts, H Alpha Line, Solar Limb, Solar Prominences, Solar X-Rays, Surges

Scientific paper

A solar flare occurred on 1978 December 20 in the McMath active region No. 15700. In this paper a detailed study of the spray and surge activities associated with this flare is presented. A possible explanation for the observed recurring tendency of surges with a quasi-periodicity of 5 - 30 min is suggested as due to additional small magnetic flux brought out by buoyancy in or near a satellite spot which could provide enough collimating energy to squeeze out the surge material at a quasi-periodic time interval. Another interesting surge phenomenon was observed which showed up and down motion of a small surge material between 11.00 - 11.30 UT, with a velocity of about 20 km s-1. To explain this event a qualitative model is presented.

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