Analysis of the first overtone bands of isotopologues of CO and SiO in stellar spectra

  title={Analysis of the first overtone bands of isotopologues of CO and SiO in stellar spectra},
  author={Ya. V. Pavlenko and Sergei N. Yurchenko and Jonathan Tennyson},
  journal={Astronomy \& Astrophysics},
Context. This study is based on models of the first overtone (Δv = 2) bands of the monosubstituted isotopologues of CO at 2.3 μm in the spectrum of Arcturus (K2 III) and of the monosubstituted isotopologues of SiO at 4 μm in the spectrum of the red giant HD 196610 (M6 III). Aims. We aim to investigate problems involving the computation of the first overtone bands of isotopologues of CO and SiO in the spectra of late-type stars and to determine isotopic abundances. Methods. We used fits of… 

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