Statistical equilibrium of lithium in cool stars of different metallicity

Details Statistical equilibrium of lithium in cool stars of different metallicity Statistical equilibrium of lithium in cool stars of different metallicity

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...130..319s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 130, no. 2, Jan. 1984, p. 319-323. Sponsorship: Deutsche Forschungsgemeinschaf

Astronomy and Astrophysics

Astrophysics

223

Cool Stars, Late Stars, Lithium, Metallicity, Stellar Spectra, Thermodynamic Equilibrium, Dwarf Stars, K Stars, Radiative Transfer, Resonance Lines, Stellar Temperature, Supergiant Stars

Scientific paper

The authors investigate non-LTE effects in the Li I resonance lines of the Sun, a K 3Ib supergiant, halo dwarfs and a halo giant. Special attention is given to a realistic treatment of the ionizing ultraviolet radiation field, including absorption lines, and to the thermalizing effect of inelastic collisions with hydrogen atoms. The solar Li abundance is hardly affected by departures from LTE. The recommended value is log ɛLi = 1.16±0.10 on the standard scale log ɛH = 12.

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