Table 1
Stellar parameters of AD Leo.
| Parameter | Value | Reference |
|---|---|---|
| Identifiers | ||
| BD | +20 2465 | Arg1861 |
| Ci | 18 1244 | Por1915 |
| GJ | 388 | Gli1957 |
| Karmn | J10196+198 | Cab2016 |
| Astrometry and kinematics | ||
| α (epoch J2016.0) | 10:19:35.7 | Gaia EDR3 |
| δ (epoch J2016.0) | 19:52:11.3 | Gaia EDR3 |
| µα cos δ (masyr−1) | −498.62 ± 0.03 | Gaia EDR3 |
| µδ (masyr−1) | −43.43 + 0.03 | Gaia EDR3 |
| π (mas) | 201.41 ± 0.03 | Gaia EDR3 |
| d (pc) | 4.964 ± 0.001 | Gaia EDR3 |
| γ (km s−1) | 12.286 ± 0.021 | Laf2020 |
| U (km s−1) | −14.929 ± 0.010 | This work |
| V (km s−1) | −7.444 ± 0.007 | This work |
| W (km s−1) | +3.391 ± 0.017 | This work |
| Galactic population | Young disk | Mon2001 |
| Stellar kinematic group | Castor | LS2010 |
| Key photometry | ||
| G (mag) | 8.2041 ± 0.0015 | Gaia EDR3 |
| J (mag) | 5.449 ± 0.027 | 2MASS |
| Photospheric parameters | ||
| Spectral type | M3.0V | AF2015 |
| Teff (K) | 3477 ± 23 | Mar2021 |
| log g (cgs) | 5.12 ± 0.12 | Mar2021 |
| [Fe/H] (dex) | −0.19 ± 0.12 | Mar2021 |
| <Bf> (G) | 3357 ± 172 | Rein2022 |
| Activity | ||
| v sin i (km s−1) | 2.4 ± 1.5 | This work(a) |
| Prot (d) |  |
This work(b) |
| pEW(Hα) (Å) | −3.73 ± 0.41 | Fuhr2022 |
| log Hα/Lbol | −3.614 ± 0.003 | Sch2019 |
log  |
−3.97 ± 0.05 | This work |
| log LX/Lbol | –3.3 | Fav2000 |
| Physical parameters | ||
| L⋆ (10−5 L⊙) | 2359 ± 11 | This work |
| R⋆ (R⊙) | 0.4233 ± 0.0057 | This work |
| M⋆ (M⊙) | 0.423 ± 0.012 | This work |
| i (deg) |  |
This work |
Notes. (a)This value was individually produced for AD Leo using a chosen order selection and is consistent, but supersedes previous measurement (e.g., Marfil et al. 2021). (b)See Sect. 6.3 for the Prot determination and Table A.1 for other rotational periods found in the literature.
References. 2MASS: Skrutskie et al. (2006); AF2015: Alonso-Floriano et al. (2015); Arg1861: Argelander (1861); Cab2016: Caballero et al. (2016); Fav2000: Favata et al. (2000); Fuhr2022: Fuhrmeister et al. (2022); Gaia EDR3: Gaia Collaboration (2021); Gli1957: Gliese (1957); Hoj2019: Hojjatpanah et al. (2019); Laf2020: Lafarga et al. (2020); LS2010: López-Santiago et al. (2010); Mar2021: Marfil et al. (2021); Mon2001: Montes et al. (2001); Rein2022: Reiners et al. (2022); Pass2019: Passegger et al. (2019); Por1915: Porter et al. (1915); Sch2019: Schöfer et al. (2019).
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