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Table 4
Fit of M star templates.
| Spectral | Inactivea | Activea | UDC | |||||||
| type | T eff b | T eff | log g | [Fe/H] | T eff | log g | [Fe/H] | T eff | log g | [Fe/H] |
|
|
||||||||||
| M0 | 3900 | 3891 | 4.62 | −0.27 | 4028 | 4.47 | −0.25 | – | – | – |
| M1 | 3700 | 3669 | 4.74 | −0.29 | 3668 | 4.81 | −0.32 | – | – | – |
| M2 | 3500 | 3510 | 4.87 | −0.44 | 3397 | 4.67 | −0.63 | 3449 | 4.89 | −0.27 |
| M3 | 3300 | 3369 | 4.92 | −0.43 | 3353 | 4.90 | −0.80 | 3315 | 4.93 | −0.34 |
| M4 | 3150 | 3247 | 4.91 | −0.33 | 3268 | 5.04 | −0.73 | 3157 | 4.95 | −0.11 |
| M5 | 3000 | 2979 | 4.85 | −0.03 | 2913 | 4.87 | −0.03 | 2901 | 4.97 | 0.04 |
| M6 | 2850 | 2874 | 5.02 | −0.04 | 2852 | 4.97 | −0.04 | 2854 | 5.02 | 0.12 |
| M7 | 2700 | 2805 | 5.18 | −0.04 | 2793 | 5.10 | 0.05 | 2850 | 5.00 | 0.34 |
Notes.
(a)
Bochanski et al. (2007) gives two sets of spectral templates, one for the stars without detected chromospheric activity, and one for the active stars.
(b)
Spectral type vs. Teff relation from Rajpurohit et al. (2013), their Fig. 5.
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