Table 1
Empirical data used to derive spot-to-photospheric temperature contrasts using the Doppler imaging technique.
| Star | Sp. type | Tphot (K) | Tspot (K) | ΔT (K) | Ref. |
|---|---|---|---|---|---|
| HD 106506 | G1.0 V | 5870 | 4000 | 1870 | 1 |
| EK Dra | G1.5 V | 5561 | 3861 | 1700 | 2 |
| HD 171488 | G2.0 V | 5808 | 4200 | 1600 | 3 |
| HD 29615 | G3.0 V | 5820 | 3920 | 1900 | 4 |
| AB Dor | K0.0V | 5000 | 3500 | 1500 | 5 |
| EV Lac | M3.5V | 3300 | 2300 | 1000 | 7 |
| V394 Peg | M4.0V | 3200 | 2800 | 400 | 8 |
| HU Del | M4.5 V | 3000 | 2700 | 300 | 9 |
| GJ 65A | M5.5 V | 2800 | 2400 | 400 | 9 |
| GJ 65B | M6.0 V | 2800 | 2400 | 400 | 9 |
| LP 944–20 | M9.5 V | 2300 | 2100 | 200 | 8 |
Notes. 1: Waite et al. (2017); 2: Waite et al. (2017); 3: Jeffers & Donati (2008); 4: Waite et al. (2015); 5: Jeffers (2005); 6: Jeffers et al. (2022); 7: Morin et al. (2008a); 8: Barnes et al. (2015); 9: Barnes et al. (2017).
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