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Table 1
Properties of 55 Cnc used and derived in our analysis.
| Parameter | Symbol | Value | Unit | Reference |
|---|---|---|---|---|
| Radius | R⋆ | 0.943 ± 0.010 | Rsun | von Braun et al. (2011) |
| Mass | M⋆ | 0.905 ± 0.015 | Msun | von Braun et al. (2011) |
| Effective temperature | Teff | 5172 ± 18 | K | Yee et al. (2017) |
| Surface gravity | log10(g) | 4.43 ± 0.02 | Yee et al. (2017) | |
| Metallicity | [Fe/H] | 0.35 ± 0.1 | Yee et al. (2017) | |
| Limb-darkening coefficients | u1 | 0.544 ± 0.008 | This work | |
| u2 | 0.186 ± 0.004 | This work | ||
| Cycle period | Pmag | 10.5 ± 0.3 | years | This work, derived from KECK HIRES S-index |
| Rotation period | P⋆ | 38.8 ± 0.05 | days | This work |
| Projected rotational velocity | V sin i⋆ | <1.23 ± 0.01 | km s−1 | This work |
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