Computation and analysis of the physical fields of a disc flare loop

Details Computation and analysis of the physical fields of a disc flare loop Computation and analysis of the physical fields of a disc flare loop

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987cha%26a..11...57y&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 11, Issue 1, p. 57-63.

Astronomy and Astrophysics

Astrophysics

Scientific paper

We carried out a preliminary reduction of the Ha-SSHG spectral data on the large, double-ribbon, class 3B flare of 1981 May 16, obtained at Yunnan Observatory. We used a least-squares fit of a nonlinear function to derive simultaneously from the observed profile, the optical depth at the line centre, the Doppler width, the mean source function and the radial velocity, thus providing an example of a numerical treatment of data having the characteristics of a time-space series.
The results of calculation show that matter inside the flare loop was falling along the loop legs to the chromosphere and that it would be more reasonable to use the chromospheric evaporation model to account for the source of the loop matter.

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