Table 1
Properties of the stars GJ 3512, GJ 317, GJ 463, GJ 508.2, and GJ 9773.
| GJ 3512 | GJ 317 | GJ 463 | GJ 9773 | GJ 508.2 | Ref. | |
|---|---|---|---|---|---|---|
| Karmn | J08413+594 | J08409-234 | J12230+640 | J22125+085 | J13209+342 | |
| Spectral type | M 5.5 V | M3.5 V | M3.0 V | M3.0 V | M1.0 V | 1 |
| α (J2000) | 08:41:20.13 | 08:40:59.21 | 12:23:00.16 | 22:12:35.94 | 13:20:58.05 | 2 |
| δ (J2000) | +59:29:50.44 | −23:27:22.59 | +64:01:50.96 | +08:32:55.50 | +34:16:44.20 | 2 |
| pmα (mas a−1) | −260.276±0.023 | −461.344±0.041 | −673.116±0.018 | 106.380±0.026 | 483.884±0.014 | 2 |
| pmδ (mas a−1) | −1279.562±0.026 | 805.221±0.038 | 373.311±0.021 | −671.154±0.041 | −297.069±0.016 | 2 |
| π (mas) | 105.294±0.031 | 65.877±0.041 | 54.447±0.019 | 62.878±0.022 | 60.029±0.019 | 2 |
| d (pc) | 9.4973±0.0028 | 15.1798±0.0094 | 18.3664±0.0066 | 15.9037±0.0056 | 16.6585±0.0054 | |
| Photometry | ||||||
| BP (mag) | 15.3833±0.0046 | 12.2327±0.0033 | 11.8252±0.0030 | 12.2297±0.0033 | 10.8363±0.0029 | 2 |
| V (mag) | 15.166±0.072(a) | 11.98±0.04 | 11.59±0.06 | 11.96±0.01 | 10.61±0.01 | 3 |
| G (mag) | 13.0823±0.0029 | 10.7651±0.0028 | 10.5524±0.0028 | 10.9082±0.0028 | 9.7727±0.0028 | 2 |
| TESS (mag) | 11.576±0.008 | 9.511±0.007 | 9.394±0.007 | 9.734±0.007 | 8.97±0.14 | 4 |
| RP (mag) | 11.7121±0.0041 | 9.5689±0.0039 | 9.4291±0.0038 | 9.7698±0.0038 | 8.7456±0.0038 | 2 |
| J (mag) | 9.615±0.023 | 7.934±0.027 | 7.937±0.029 | 8.277±0.021 | 7.398±0.022 | 5 |
| H (mag) | 8.996±0.028 | 7.321±0.071 | 7.343±0.020 | 7.681±0.024 | 6.793±0.018 | 5 |
| K (mag) | 8.668±0.021 | 7.028±0.020 | 7.122±0.018 | 7.472±0.027 | − | 5 |
| W1 (mag) | 8.430±0.023 | 6.867±0.056 | 6.962±0.051 | 7.239±0.035 | 6.516±0.069 | 6 |
| W2 (mag) | 8.215±0.019 | 6.766±0.021 | 6.883±0.020 | 7.147±0.019 | 6.371±0.023 | 6 |
| W3 (mag) | 8.054±0.020 | 6.704±0.016 | 6.815±0.017 | 7.064±0.017 | 6.363±0.016 | 6 |
| W4 (mag) | 8.051±0.199 | 6.502±0.059 | 6.634±0.057 | 6.918±0.103 | 6.237±0.045 | 6 |
| Gaia DR3 parameters | ||||||
| Excess noise (mas) | 0.264 | 0.358 | 0.183 | 0.133 | 0.114 | 2 |
| Significance | 75.4 | 174.7 | 46.0 | 23.4 | 16.8 | 2 |
| Stellar properties | ||||||
| M (M⊙) | 0.123±0.009 | 0.402±0.014 | 0.486±0.014 | 0.358±0.011 | 0.54±0.12 | 7 |
| R (R⊙) | 0.139±0.005 | 0.403±0.009 | 0.483±0.008 | 0.362±0.005 | 0.53±0.12 | 7 |
| Teff (K) | 3141±38 | 3496±37 | 3563±28 | 3528±25 | 3720±12 | 8 |
| [Fe/H] (dex) | −0.07±0.16 | −0.02±0.08 | −0.16±0.10 | −0.20±0.09 | −0.15±0.04 | 8 |
| v sin i (km s−1) | <2 | <2.5(b) | <2 | <2.0 | <2.0 | 9 |
| pEWHα (Å) | −1.339±0.013(c) | 0.202±0.024 | 0.322±0.013 | 0.225±0.012 | 0.379±0.009 | 10 |
| Prot (d) | 83 | 57.5±1.7 | 32.9±1.1 | 56±8(d) | 36±6(d) | 11 |
Notes. (1) Reid et al. (1995); (2) Gaia Collaboration (2023); (3) UCAC4; (4) TESS; (5) 2MASS; (6) WISE; (7) Schweitzer et al. (2019); (8) Marfil et al. (2021); (9) Reiners et al. (2018); (10) Fuhrmeister et al. (2020); (11) Shan et al. (2024). (a) value from Henden et al. (2015), (b) value from Browning et al. (2010), (c) value from Schöfer et al. (2019), (d) Values from this work.
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