Spectral analysis of the 1984 October 18 solar prominence

Details Spectral analysis of the 1984 October 18 solar prominence Spectral analysis of the 1984 October 18 solar prominence

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990acaps..10..163h&link_type=abstract

(Acta Astrophysica Sinica, vol. 10, no. 2, 1990, p. 163-172) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 14, Sept.

Astronomy and Astrophysics

Astrophysics

1

Solar Prominences, Solar Spectra, Spectrum Analysis, Stellar Models, Doppler Effect, Line Spectra, Solar Temperature

Scientific paper

Various physical parameters of the solar prominence of October 18, 1984 are calculated using the method of complete linearization and a semiempirical model based on the N-LTE theory. When finding the Doppler width of prominence lines Delta lambdaD, the method of complete linearization is more accurate than the classical method. The semiempirical model based on an N-LTE computer program gave a central temperature of the prominence of approximately 5900 K, a turbulence velocity of 5.5 - 6.5 km/s, and a mean hydrogen density of 3.8 x 10 to the 11th/cu cm. The calculated distribution of the column density of hydrogen over energy levels showed that the lower energy levels are in N-LTE, the higher ones, in LTE.

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