Table 1
Stellar properties of YSES 2.
| Parameter | Value | Ref. |
|---|---|---|
| Main identifier | YSES 2 | (1) |
| Tycho ID | TYC 8984-2245-1 | (2) |
| 2MASS ID | J11275535-6626046 | (3) |
| Gaia EDR3 ID | 5236792880333011968 | (4) |
| α (J2000) (hh mm ss.sss) | 11 27 55.355 | (4) |
| δ (J2000) (dd mm ss.ss) | −66 26 04.50 | (4) |
| Spectral Type | K1V(e) | (5) |
| ϖ (mas) | 9.1537 ± 0.0118 | (4) |
| D (pc) | 109.25 ± 0.14 | (7) |
| μα* (mas yr−1) | −34.025 ± 0.013 | (4) |
| μδ (mas yr−1) | 2.319 ± 0.011 | (4) |
| vrad (km s−1) | 13.41 ± 0.17 | (5) |
| B (mag) | 11.819 ± 0.010 | (8) |
| V (mag) | 10.860 ± 0.017 | (8) |
| G (mag) | 10.525 ± 0.003 | (4) |
| I (mag) | 9.773 ± 0.044 | (9) |
| J (mag) | 9.006 ± 0.026 | (3) |
| H (mag) | 8.484 ± 0.029 | (3) |
| Ks (mag) | 8.358 ± 0.029 | (3) |
| W1 (mag) | 8.323 ± 0.014 | (10) |
| W2 (mag) | 8.351 ± 0.008 | (10) |
| W3 (mag) | 8.258 ± 0.019 | (11) |
| W4 (mag) | 7.929 ± 0.118 | (11) |
| Prot (day) | 2.7325 | (9) |
| v sin i (km s−1) | 19.3 ± 0.5 | (5) |
| log(LX/Lbol) (dex) | −3.07 ± 0.23 | (9) |
| EW(Li I λ6707) (mÅ) | 364 ± 0.05 | (6) |
| EW(Hα) (mÅ) | 0.0 | (5) |
| U (km s−1) | −10.10 ± 0.08 | (7) |
| V (km s−1) | −18.93 ± 0.12 | (7) |
| W (km s−1) | −5.60 ± 0.09 | (7) |
| AV (mag) | 0.06 |
(6) |
| Teff (K) | 4749 ± 40 | (6) |
| mbol (mag) | 10.396 ± 0.015 | (6) |
| Mbol (mag) | 5.204 ± 0.016 | (6) |
 (dex) |
−0.1854 ± 0.0063 | (6) |
| R(R⊙) | 1.193 ± 0.022 | (6) |
| Mass (M⊙) | 1.10 ± 0.03 | (6) |
| Age (Myr) | 13.9 ± 2.3 | (6) |
References. (1) This paper, see Sect. 2; (2) Høg et al. (2000); (3) Cutri et al. (2003); (4) Gaia Collaboration (2021), and Gaia EDR3 and DR2 ID #s are the same; (5) Torres et al. (2006); (6) this paper, see Sect. 4.3; (7) distance and heliocentric Galactic Cartesian velocity calculated using Gaia EDR3 values (D = 1/ϖ); (8) Henden et al. (2016); (9) Kiraga (2012); (10) Eisenhardt et al. (2020); (11) Cutri & et al. (2014).
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