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Communication Dans Un Congrès Année : 2011

The Effective temperature scale of M dwarfs from spectral synthesis

Résumé

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 comparison 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 temperatures 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.

Dates et versions

hal-00579850 , version 1 (25-03-2011)

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C. Reylé, A. S. Rajpurohit, M. Schultheis, F. Allard. The Effective temperature scale of M dwarfs from spectral synthesis. The Effective temperature scale of M dwarfs from spectral synthesis, 2011, Seattle, United States. ⟨hal-00579850⟩
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