On the red giant titanium oxide bands

Details On the red giant titanium oxide bands On the red giant titanium oxide bands

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pazh...11..866h&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 11, Nov. 1985, p. 866-872) Soviet Astronomy Letters (ISSN 0360-0327), vol. 11, Nov.-Dec

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Atmospheric Models, Cool Stars, Red Giant Stars, Spectral Bands, Stellar Spectra, Titanium Oxides, Computational Astrophysics, Stellar Temperature

Scientific paper

The dependence of TiO absorption in cool oxygen-sequence giant stars on the Teff and log g of their atmospheres is investigated theoretically on the basis of spectra simulated using the computer program described by Hanni (1983) and the giant model atmospheres of Johnson et al. (1980). The temperature dependence of the intensity jumps at the head of the alpha(1.0) band is determined from simulated spectra, and the jumps are related to spectral types using the calibration of Ridgway et al. (1980). The results are presented in tables and graphs and shown to be in good agreement with the empirical Teff/intensity-jump correlation of Boyarchuk (1969).

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