Departures from LTE in the fundamental bands of CO in cool stars

Details Departures from LTE in the fundamental bands of CO in cool stars Departures from LTE in the fundamental bands of CO in cool stars

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...207..253c&link_type=abstract

Astrophysical Journal, vol. 207, July 1, 1976, pt. 1, p. 253-262.

Astronomy and Astrophysics

Astrophysics

33

Carbon Monoxide, Cool Stars, Late Stars, Molecular Spectra, Radiative Transfer, Stellar Models, Thermodynamic Equilibrium, Electron Transitions, Ground State, Molecular Energy Levels, Molecular Oscillations, Molecular Rotation, Thermalization (Energy Absorption)

Scientific paper

A method is presented for solving the coupled statistical equilibrium and radiative transfer equations for the vibrational-rotational transitions in the ground electronic state of CO. The technique is subject to the assumption that the rotational levels within each vibrational level are in LTE. We applied this method to three cool stellar models within its range of applicability and find that the LTE and non-LTE spectra are substantially different for the cooler models.

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