The statistical equilibrium and the 670, 776 and 670, 791 NM absorption lines of Li I in the spectra of red-giant - Results

Details The statistical equilibrium and the 670, 776 and 670, 791 NM absorption lines of Li I in the spectra of red-giant - Results The statistical equilibrium and the 670, 776 and 670, 791 NM absorption lines of Li I in the spectra of red-giant - Results

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991azh....68.1240p&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 68, Nov.-Dec. 1991, p. 1240-1246. In Russian.

Astronomy and Astrophysics

Astronomy

2

Absorption Spectra, Line Spectra, Lithium, Red Giant Stars, Stellar Spectra, K Stars, M Stars, Opacity, Spectrum Analysis

Scientific paper

The solution of the NLTE problem for lithium in atmospheres of K and M giants are presented. The opacity at lithium bound-bound and bound-free Li I transition frequencies is due to continuum sources, molecular bands, and atomic lines. The LTE and NLTE growth curves for the Li I doublet synthetic spectra in the lambda 670.8-nm region are obtained. The results show that NLTE effects are significant in red-giant atmospheres.

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