Table 2
Stellar parameters of TOI-1201 and its 8 arcsecond-wide companion.
| Parameter | Primary | Secondary | Reference |
|---|---|---|---|
| Names and identifiers | |||
| Name | PM J02489–1432W | PM J02489–1432E | LG11 |
| Karmn | J02489–145W | J02489–145E | Cab16 |
| Gaia EDR3 ID | 5157183324996790272 | 5157183324996789760 | Gaia EDR3 |
| TOI | 1201 | 393 | ExoFOP-TESS |
| TIC | 29 960 110 | 29 960 109 | Sta18 |
| Coordinates and spectral types | |||
| α (J2000) | 02:48:59.27 | 02:48:59.83 | Gaia EDR3 |
| δ (J2000) | –14:32:14.9 | –14:32:16.2 | Gaia EDR3 |
| Sp. type(a) | M2.0 ± 0.5 V | M2.5 ± 0.5 V | This work |
| Magnitudes | |||
| NUV (mag) | 21.664 ± 0.337 | 21.923 ± 0.491 | GALEX |
| B (mag) | … | 14.111 ± 0.030 | UCAC4 |
| g′ (mag) | 13.7285 ± 0.0028 | 13.334 ± 0.020 | Pan-STARRS1/UCAC4 |
| GBP (mag) | 13.344 ± 0.025 | 13.694 ± 0.014 | Gaia EDR3 |
| V (mag) | … | 12.706 ± 0.020 | UCAC4 |
| r′ (mag) | 12.5537 ± 0.0010 | 12.110 ± 0.080 | Pan-STARRS1/UCAC4 |
| G (mag) | 12.0888 ± 0.0072 | 12.3710 ± 0.0052 | Gaia EDR3 |
| i′ (mag) | 11.4326 ± 0.038 | 10.900 ± 0.010 | Pan-STARRS1/UCAC4 |
| GRP (mag) | 10.9748 ± 0.0092 | 11.2333 ± 0.0061 | Gaia EDR3 |
| J (mag) | 9.528 ± 0.042 | 9.733 ± 0.024 | 2MASS |
| H (mag) | 8.876 ± 0.057 | 9.125 ± 0.027 | 2MASS |
| Ks (mag) | 8.646 ± 0.029 | 8.875 ± 0.021 | 2MASS |
| W1 (mag) | 7.721 ± 0.014 | 7.731 ± 0.011 | AllWISE/WISE |
| W2 (mag) | 7.693 ± 0.013 | 7.670 ± 0.012 | AllWISE/WISE |
| W3 (mag) | 7.918 ± 0.020 | 8.063 ± 0.019 | AllWISE/WISE |
| W4 (mag) | 7.709 ± 0.129 | 7.794 ± 0.120 | AllWISE/WISE |
| Parallax and kinematics | |||
| π (mas) | 26.571 ± 0.022 | 26.539 ± 0.023 | Gaia EDR3 |
| d (pc) | 37.636 ± 0.032 | 37.680 ± 0.033 | Gaia EDR3 |
| μα cosδ (mas yr−1) | +164.069 ± 0.025 | +174.433 ± 0.033 | Gaia EDR3 |
| μδ (mas yr−1) | +46.549 ± 0.027 | +45.465 ± 0.029 | Gaia EDR3 |
 (km s−1) |
+31.771 ± 0.018 | +31.868 ± 0.018 | This work |
| U (km s−1) | –38.495 ± 0.018 | –39.577 ± 0.020 | This work |
| V (km s−1) | –17.125 ± 0.018 | –18.521 ± 0.019 | This work |
| W (km s−1) | –12.652 ± 0.019 | –11.956 ± 0.020 | This work |
| Galactic population | Young disk | This work | |
| Stellar kinematic group | Hyades Supercluster | This work | |
| Photospheric parameters | |||
| Teff (K) | 3476 ± 51 | 3437 ± 51 | This work |
| log g⋆ (cgs) | 4.80 ± 0.04 | 4.80 ± 0.04 | This work |
| [Fe/H] (dex) | 0.05 ± 0.16 | 0.05 ± 0.16 | This work |
| v sin i (km s−1) | <2 | <2 | This work |
| Hα index | 0.931 ± 0.025 | 0.913 ± 0.023 | This work |
| pEW(Hα) | −0.437 ± 0.053 | −0.419 ± 0.050 | This work |
| Prot (d) | 19–23 | … | This work |
| Physical parameters | |||
| L⋆ (10−5 L⊙) | 3400 ± 57 | 2683 ± 25 | Cif20 |
| R⋆ (R⊙) | 0.508 ± 0.016 | 0.462 ± 0.014 | This work |
| M⋆ (M⊙) | 0.512 ± 0.020 | 0.463 ± 0.018 | This work |
| ρ⋆ (g cm−3) |  |
 |
This work |
Notes. (a)Photometrically derived spectral types. (b)RAVE DR4 Kordopatis et al. (2013) tabulated γ = +6.6 ± 6.1 km s−1 and Teff = 3600 ± 310 K for the primary and γ = +31.7 ± 1.4 km s−1 and Teff = 3840 ± 70 K for the secondary. The RAVE spectrum of the primary had a very poor signal-to-noise ratio (S∕N = 4.2), which led to wrong Vr and stellar parameter determination (e.g., logg = 1.5 ± 1.0, inconsistent with the star’s main-sequence nature).
References. Cab16: Caballero et al. (2016a); Gaia EDR3: Gaia Collaboration (2021); GALEX: Bianchi et al. (2011); Sta18: Stassun et al. (2018); UCAC4: Zacharias et al. (2012); 2MASS: Skrutskie et al. (2006); Cif20: Cifuentes et al. (2020); LG11: Lépine & Gaidos (2011); Pan-STARRS1: Kaiser et al. (2010); WISE/AllWISE: Cutri & et al. (2012, 2014).
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