Table 1.
Primary characteristics of KPNO-Tau 14 and LkCa 4.
| KPNO-Tau 14 | LkCa 4 | |
|---|---|---|
| Spectral type | M6 | K7 |
| Age (Myr) | 11 | 26/0.57 |
| Distance (pc) |
 |
129.4 ± 0.62 |
| Mass (M⊙) | 0.11 | 0.79 ± 0.056/0.15–0.307 |
| Radius (R⊙) | ∼13 | 2.37 |
| Rotation period | 1.86 ± 0.014 | 3.37 ± 0.018 |
| Surface magnetic field strength (kG) | – | 1.6 6 |
| Coronal temperature (MK) | 12.65 | – |
Notes. Due to the uncertainty in the age and mass of LkCa4, two values are given for these parameters.
References. (1) Luhman et al. (2003); (2) Bailer-Jones et al. (2018); (3) Derived from Baraffe et al. (2015) models; (4) Scholz et al. (2018); (5) Güdel et al. (2007); (6) Donati et al. (2014); (7) Gully-Santiago et al. (2017); (8) Grankin et al. (2008).
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