The formation depth of TiO gamma-system absorption lines in the atmosphere of an M3 type giant

Details The formation depth of TiO gamma-system absorption lines in the atmosphere of an M3 type giant The formation depth of TiO gamma-system absorption lines in the atmosphere of an M3 type giant

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988kfnt....4...35p&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 4, May-June 1988, p. 35-39. In Russian.

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Absorption Spectra, Red Giant Stars, Stellar Atmospheres, Stellar Composition, Computational Astrophysics, Stellar Temperature, Titanium Oxides

Scientific paper

The synthetic spectrum of a red giant with T(eff) = 3600 K, lg g = 0.5 was calculated in the 670.67-670.75 nm spectral region. The formation depth of TiO gamma-system absorption lines was evaluated using different methods. It is found that TiO absorption lines form in a wide range of depths in the M-giant atmosphere above the level of continuum formation. The lines of the TiO gamma system are sensitive to chromospheric effects. The increase in temperature in the outer part of the model for the red giant atmosphere leads to significant intensity variations.

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