Statistics – Computation
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986acasn..27...30z&link_type=abstract
(Acta Astronomica Sinica, vol. 27, 1986, p. 30-37) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 10, Dec. 1986, p. 3
Statistics
Computation
5
Emission Spectra, Linearization, Solar Prominences, Spectrum Analysis, Computational Astrophysics, Doppler Effect, H Alpha Line, H Beta Line, K Lines, Optical Thickness
Scientific paper
The emission spectra of solar prominences were analyzed using the complete linearization method and the optical depth at the line center, the Doppler width of the line, and the damping width a were found simultaneously. The results show: (1) that the complete linearization method has a larger radius of convergence, (2) that the variation of the source function with depth must be considered when determining the optical depth at the line center, and (3) that the calculated values of the damping constant for the H-alpha, H-beta of hydrogen and H and K lines of calcium are all much greater than the theoretical values from Doppler broadening and radiation damping, showing that other mechanisms besides these two also contribute to the broadening of prominence lines.
Fang Cheng
Zhang Qi-Zhou
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