Table 1
Stellar parameters and adopted values for the StarSim simulations for ϵ Eri and TZ Ari.
| Parameter | Literature | Ref. | StarSim value | Literature | Ref. | StarSim value |
|---|---|---|---|---|---|---|
| Name | ϵ Eri | – | TZ Ari (Gl 83.1) | – | ||
| Spectral type | K2.0 V | (1) | HARPS K5 mask | M5.0 V | (2) | CARMENES M5 mask |
| α | 03:32:54.79 | (3) | – | 02:00:14.16 | (3) | – |
| δ | −09:27:29.41 | (3) | – | +13:02:38.66 | (3) | – |
| µα (mas yr−1) | −974.76±0.16 | (3) | – | 1096.46 ±0.07 | (3) | – |
| µδ (mas yr−1) | 20.88±0.12 | (3) | – | −1771.53±0.06 | (3) | – |
| d (pc) | 3.2198±0.0014 | (3) | – | 4.4696±0.0014 | (3) | – |
| G (mag) | 3.4658±0.0014 | (3) | – | 10.6811±0.0008 | (3) | – |
| L (L⊙) | 0.32±0.05 | (4) | – | 0.00254±0.00002 | (5) | – |
| age (Myr) | 400–800 | (6) | – | >750 | (7) | – |
| M (M⊙) | 0.82±0.05 | (4) | 0.815–0.825 | 0.140–0.160 | (5) | 0.150±0.010 |
| R (R⊙) | 0.74±0.01 | (4) | 0.73–0.75 | 0.164±0.005 | (5) | 0.163–0.165 |
| Teff (K) | 5076±30 | (8) | 4900–5300 | 3154±54 | (9) | 2950–3350 |
| Prot (days) | 11.2 | (10) | 11.1–11.3 | 1.96±0.07 | (11) | 1.9–2 |
| i (deg) |  |
(12) | 70–90 | <28 | (7) | 20–28 |
| log g (dex) | 4.30±0.08 | (13) | 4.5 | 5.01±0.06 | (9) | 5 |
 |
1080±670 | (14) | 200–1000 | 536±318 | (14) | 200–1000 |
 |
∼0.3 | (15) | 0.1–0.5 | – | – | −0.2–0.2 |
Notes. (1) Keenan & McNeil (1989); (2) Lépine et al. (2013); (3) Brown et al. (2021); (4) Baines & Armstrong (2011); (5) Schweitzer et al. (2019); (6) Mamajek & Hillenbrand (2008); (7) Quirrenbach et al. (2022); (8) Heiter et al. (2015); (9) Passegger et al. (2019); (10) Fröhlich (2007); (11) this work; (12) Giguere et al. (2016); (13) Gonzalez et al. (2010); (14) Herbst et al. (2021); (15) Liebing et al. (2021).∗ Tcon is the spot temperature difference with respect to the photosphere; 
the convective blueshift in solar units.
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