| Issue |
A&A
Volume 447, Number 2, February IV 2006
|
|
|---|---|---|
| Page(s) | 709 - 717 | |
| Section | Stellar atmospheres | |
| DOI | https://doi.org/10.1051/0004-6361:20052979 | |
| Published online | 07 February 2006 | |
Spectral energy distribution for GJ406
1
Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield, AL10 9AB, UK e-mail: yp@star.herts.ac.uk
2
Main Astronomical Observatory, Academy of Sciences of the Ukraine, Golosiiv Woods, Kyiv-127, 03680 Ukraine
3
Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
Received:
3
March
2005
Accepted:
18
October
2005
We present results of modelling the bulk of the spectral
energy distribution (0.35–5 μm) for GJ406 (M6V). Synthetic
spectra were calculated using the NextGen, Dusty and Cond model
atmospheres and incorporate line lists for H2O, TiO, CrH, FeH,
CO, MgH molecules as well as the VALD line list of atomic lines.
A comparison of synthetic and observed spectra gives Teff = 
K. We determine 
for which evolutionary
models by Baraffe et al. (2003, A&A, 402, 711) suggest an age of around 0.1–0.35 Gyr consistent with its high activity. The age and
luminosity of GJ406 correspond to a wide range of plausible masses
(0.07–0.1 
).
Key words: stars: individual: GJ406 / molecular data / stars: fundamental parameters / stars: late-type / stars: atmospheres / stars: evolution
© ESO, 2006
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