Table 1.
Properties of our sample stars in comparison to the Sun.
Name | Nobs | V | Dist | Teff | log g | Mass | Radius | Age | Ro | Prot | veq sin i | i | dΩ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
[mag] | [pc] | [K] | [M⊙] | [R⊙] | [Gyr] | [d] | [km s−1] | [°] | [rad d−1] | ||||
Sun | … | −26.7 | ... | 5772 | 4.44 | 1.000 | 1.00 | 4.50 | 2.19 | 25.4 | 2.0 | ... | 0.07 |
HD 9986 | 120 | 6.76 | 25.44 | 5805 | 4.43 | 1.022 | 1.04 | 3.74 | 1.80 | 21.03 ± 0.44 | 2.6 | 60 | ... |
HD 56124 | 74 | 6.94 | 27.25 | 5848 | 4.45 | 1.029 | 1.01 | 3.88 | 1.50 | 20.70 ± 0.32 | 1.5 | 40 | ... |
HD 73350 | 33 | 6.73 | 24.35 | 5802 | 4.49 | 1.038 | 0.98 | 1.43 | 0.93 | 12.27 ± 0.13 | 4.0 | 70 | ... |
HD 76151 | 149 | 6.00 | 16.85 | 5790 | 4.49 | 1.056 | 1.00 | 2.09 | 1.50 | 17.47 ± 0.81 | 1.2 | 30 | ... |
HD 166435 | 82 | 6.83 | 24.41 | 5843 | 4.47 | 1.039 | 0.99 | 0.27 | 0.48 | 3.48 ± 0.01 | 7.9 | 40 | 0.14 ± 0.01 |
HD 175726 | 89 | 6.71 | 26.59 | 5998 | 4.43 | 1.058 | 1.06 | 0.38 | 0.31 | 4.12 ± 0.03 | 12.3 | 70 | 0.15 ± 0.03 |
Notes. The columns are: identifier of the star, total number of spectropolarimetric observations, V band apparent magnitude, distance, effective temperature, surface gravity, mass, radius, age, Rossby number, rotation period computed with ZDI, projected equatorial velocity, stellar inclination, and latitudinal differential rotation rate computed with ZDI. Visual magnitudes were extracted from SIMBAD (Wenger et al. 2000) and the distances were computed from Gaia parallaxes (Gaia Collaboration 2020). The stellar inclination was inferred from geometrical considerations (see Sect. 5). The Rossby number was taken from See et al. (2019) and the remaining parameters from Marsden et al. (2014) and references therein. The solar parameters were extracted or derived from the values in the NASA Sun fact sheet available at https://nssdc.gsfc.nasa.gov/planetary/factsheet/sunfact.html. The age of the Sun was taken from Guenther (1989).
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