Plasma motions in the flare of 1982 June 6 (X12)

Details Plasma motions in the flare of 1982 June 6 (X12) Plasma motions in the flare of 1982 June 6 (X12)

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990soph..126..351w&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 126, April 1990, p. 351-366.

Physics

11

Plasma Dynamics, Solar Flares, X Ray Spectra, Solar Maximum Mission, Spectral Line Width

Scientific paper

This paper analyzes soft X-ray spectra obtained from the Hinotori spacecraft for the investigation of plasma motions during the initial phase of the great flare of June 6, 1982. Hard X-ray bursts, nonthermal line broadenings, and blueshifted components in X-ray lines are temporally correlated with time differences of 0-30 s. The possible contribution of the blueshifted component to the line width decreases more rapidly than the nonthermal broadening, which suggests dominant plasma motions are taking place at higher and higher altitude in the corona, because of the increase of electron density in flaring loops. The results suggest that the origins of the nonthermal line broadening and Fe XXVI source are closely coupled.

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