Table 1
Stellar parameters derived for the V-LoTSS M dwarf sample, with targets grouped according to the designations in Table 2 and then ordered according to spectral type.
| Target | Sp Type | Teff (K) | log g | [Fe/H] | v sin i⋆ (km/s) | Prot (d) | R⋆ (R⊙) | i⋆ |
|---|---|---|---|---|---|---|---|---|
| GJ 625 | M2.5 ± 0.4 | 3475 | 4.90 | −0.49 | <2α | 80 ± 8a | 0.338 ± 0.010 | |
| GJ 1151 | M5.2 ± 0.5 | 3140 | 5.07 | 0.01 | <2α | 125 ± 13a | 0.202 ± 0.006 | |
| LHS 2395 | M7.0 ± 0.7 | 2869 | 5.14 | −0.12 | <2α | − | 0.140 ± 0.004 | |
| GJ 450 | M1.7 ± 0.1 | 3581 | 4.77 | −0.14 | <2α | 23 ± 2.3a | 0.461 ± 0.013 | |
| AD Leo | M2.8 ± 0.5 | 3242 | 4.89 | −0.15 | 2.7 ± 0.7 β | 2.2399 ± 0.0006c | 0.427 ± 0.012 | ![]() |
| GJ 3647 | M3.5 ± 0.4 | 3187 | 4.92 | −0.19 | 4.1 ± 1.0 β | 7.77 ± 0.8a | 0.326 ± 0.009 | ![]() |
| NLTT 20858 | M5.5 ± 0.6 | 3080 | 5.05 | −0.22 | 6.9 ± 0.8β | 1.7 ± 0.17a | 0.182 ± 0.005 | ![]() |
| NLTT 24199 | M5.6 ± 0.6 | 3033 | 5.05 | 0.14 | <2α | 61 ± 6a | 0.225 ± 0.006 | |
| 2 M J1431,2 | M5.9 ± 1.1 | 2884 ± 157 | 4.934 ± 0.007 | − | 71 ± 7γ | 0.14 ± 0.014a | 0.289 ± 0.008 | ![]() |
| 2M J0941 | M6.1 ± 0.6 | 3063 | 5.05 | −0.17 | 2.4 ± 0.7β | 31 ± 3b | 0.195 ± 0.006 | ![]() |
| GJ 860 B | M3.7 ± 2.1 | 3289 | 5.04 | −0.41 | <2α | 0.41 ± 0.04a | 0.326 ± 0.009 | ![]() |
| LSPM J1021 | M4.3 ± 0.4 | 3184 | 4.97 | 0.01 | 4.3 ± 1.0β | 2.1 ± 0.2b | 0.276 ± 0.008 | ![]() |
| GJ 412 B | M7.2 ± 0.7 | 2867 | 5.16 | 0.07 | 7.9 ± 1.8β | 0.78 ± 0.08a | 0.128 ± 0.004 | ![]() |
| GJ 9552 | M0.8 ± 1.0 | − | − | − | − | 1.98 ± 0.2a | − | − |
| GJ 3861 | M2.3 ± 0.4 | − | − | − | − | 12 ± 1.2b | − | − |
| GJ 3729 | M3.2 ± 0.7 | − | − | − | − | 13.58 ± 1.4d | − | − |
| GJ 3789 | M3.2 ± 1.2 | − | − | − | − | 0.11 ± 0.01a | − | − |
| 2M J1051,3 | M3.2 ± 0.8 | 3195 | 4.90 | −0.12 | 5.5 ± 0.8β | − | − | |
| G 240-453 | M4.0e | 3177 | 5.06 | −0.19 | <2α | − | − | |
Notes. Rotation periods are adopted from Pope et al. (2021) unless otherwise noted. All other values are from this work unless otherwise noted. The cross-validation uncertainties for the stellar effective temperature, log g, and the metallicity are σTeff = 59 K, σlog g = 0.04, and σFe/H = 0.16. The method used to derive v sin i⋆ is annotated, where α is a result from HPF-SpecMatch, β is obtained through the CCF method and γ is obtained from the broadening function. References are annotated with letters a-d. (1)Targets shortened for space: 2MASS J09481615+5114518 (2M J094), 2MASS J14333139+3417472 (2M J143), LSPM J1024+3902E (LSPM J102), and 2MASS J10534129+5253040 (2M J105). (2)The highly broadened lines of target 2MASS J14333139+3417472 makes it difficult for HPF-SpecMatch to find matching spectra, and thus produces highly uncertain results. Therefore, we here show the stellar properties listed in the Tess Input Catalog. (3)G 240-45 and 2MASS J10534129+5253040 are likely binaries, but do not show obvious double lines and so we report the HPF-SpecMatch results here. We suggest caution in interpreting these results. a Pope et al. (2021), b This work, c Morin et al. (2008), d Newton et al. (2017), e Callingham et al. (2021b).
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