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Table 1
Atmospheric parameters of investigated M-dwarfs.
| Name | Spectral | T eff | υsini | |B| m | (|B| f) | |
| type | (K) | (km s-1) | (kG) | (kG) | ||
| atoms | FeH | |||||
|
|
||||||
| Sunspot | – | 4000 | 0.0 | 2.7 | 2.7 | 2.71 |
| GJ 1002 | M 5.5 | 3100 | 2.5 | 0 | 0 | – |
| GJ 1224 | M 4.5 | 3200 | 3.0 | ≈2 | 1.7–2 | 2.72 |
| YZ Cmi | M 4.5 | 3300 | 5.0 | 3–4 | 3–3.5 | >3.92 |
| EV Lac | M 3.5 | 3400 | 1.0 | 3–4 | 3–3.5 | ~3.93 |
| AD Leo | M 3.5 | 3400 | 3.0 | 2–3 | 2–2.5 | ~2.92 |
Notes. |B| m – mean surface magnetic field; (|B| f) – results of previous investigations.
References. (1) Wallace et al. (1998). (2) Reiners & Basri (2007), scaled from (3).(3) Johns-Krull & Valenti (1996).
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