Intensity of Cah Lines in Cool Dwarfs

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Molecular Constants: Cah, Synthetic Spectra, Cool Dwarfs, Hyades

Scientific paper

We have computed CaH bands at λ 6800 Å in four cool standard dwarfs and two Hyades cool dwarfs, in order to establish CaH molecular constants. In particular, electronic oscillator strengths fel[CaH(A - X)] = 0.5 and el[CaH(B - X)] = 1.4 were derived. The behaviour of CaH bands as a function of stellar temperatures and gravities is also studied.

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