GRID OF NLTE CORRECTIONS FOR SULFUR LINES IN THE ATMOSPHERES OF A€�K STARS
Аннотация и ключевые слова
Аннотация (русский):
A correction grid is presented to take into account the influence of departures from local thermodynamic equilibrium on sulfur lines in the atmospheres of stars in the range of spectral classes from A to K. The correction grid was obtained using the atomic model of sulfur that takes into account the most modern atomic data on collision rates with electrons and hydrogen. The influence of NLTE effects on lines in both the optical and IR regions, including lines in the H-band, is considered. For some lines of neutral sulfur, which are practically not subject to NLTE effects, the wavelengths and oscillator strengths in the solar spectrum have been refined. The modified atomic model of sulfur, used to determine the sulfur abundance from the spectra of stars of different metallicities, has shown its reliability and adequacy. All sulfur lines are well described by similar element contents, regardless of their sensitivity to the influence of NLTE effects.

Ключевые слова:
line: formation, profiles; stars: abundances; Sun: abundances
Список литературы

1. Belyaev A.K. and Voronov Y.V., 2020, Astrophysical Journal, 893, 1, id. 59

2. Korotin S.A., 2009, Astronomy Reports, 53, 7, p. 651

3. Takeda Y., Hashimoto O., Taguchi H., et al., 2005, Publications of the Astronomical Society of Japan, 57, p. 751

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