The Effective temperature scale of M dwarfs from spectral synthesis

Abstract : We present a comparison of low-resolution spectra of 60 stars covering the whole M-dwarf sequence. Using the most recent PHOENIX BT-Settl stellar model atmospheres (see paper by F. Allard, in this book) we do a first quantitative compari- son to our observed spectra in the wavelength range 550-950 nm. We perform a first confrontation between models and observations and we assign an effective tempera- tures to the observed M-dwarfs. Teff-spectral type relations are then compared with the published ones. This comparison also aims at improving the models' opacities.
Type de document :
Pré-publication, Document de travail
To be published in the on-line version of the Proceedings of Cool Stars 16 (ASP Conference Series.. 2011
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https://hal-ens-lyon.archives-ouvertes.fr/ensl-00768147
Contributeur : France Allard <>
Soumis le : jeudi 20 décembre 2012 - 20:10:49
Dernière modification le : jeudi 19 avril 2018 - 14:08:02

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  • HAL Id : ensl-00768147, version 1
  • ARXIV : 1102.1263

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C. Reyle, A. S. Rajpurohit, M. Schultheis, F. Allard. The Effective temperature scale of M dwarfs from spectral synthesis. To be published in the on-line version of the Proceedings of Cool Stars 16 (ASP Conference Series.. 2011. 〈ensl-00768147〉

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