Atmospheric thermal structure of a sample of M type giants II (CROSBI ID 99578)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Jurdana-Šepić, Rajka ; Kotnik-Karuza, Dubravka
engleski
Atmospheric thermal structure of a sample of M type giants II
We present a study of atmospheric thermal structure of nine MIII giants located in the zone of a star formation region in the stellar Galactic bar. Vibrational temperatures of the layers of formation of $\delta, \phi$ and $\epsilon$ TiO molecular band systems have been determined spectroscopically. These temperatures have been associated to optical depths by use of an appropriate model atmospheres and in view of several $T_{; ; ; eff}; ; ; $ calibration scales. Significant temperature gradient in the upper atmospheric layers has been established.
stars: M giants; stars: atmospheres; physical parameters
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