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Table 1
Fundamental parameters of π Men derived from the analysis of ESPRESSO spectra.
| Parameter | This work | Gandolfi et al. (2018) | Huang et al. (2018) |
|---|---|---|---|
| Effective temperature Teff [K] | 5998 ± 62 | 5870 ± 50 | – |
| Surface gravity log g⋆ [cgs] | 4.43 ± 0.10 | 4.36 ± 0.02(a) | – |
| 4.33 ± 0.09(b) | |||
| Iron abundance [Fe/H] [dex] | 0.09 ± 0.04 | 0.05 ± 0.09 | – |
| Microturbulence ξ [km s−1] | 1.12 ± 0.02 | – | – |
| vsin i⋆ [ km s−1] | 3.34 ± 0.07 | 3.3 ± 0.5 | – |
| Mass M⋆ [M⊙] | 1.07 ± 0.04 | 1.03 ± 0.03 | 1.094 ± 0.039 |
| Radius R⋆ [R⊙] | 1.17 ± 0.02 | 1.10 ± 0.01 | 1.10 ± 0.023 |
| Density ρ⋆ [ρ⊙] | 0.67 ± 0.04 | – | 0.814 ± 0.046 |
| Age [Ga] | 3.92 |
5.2 ± 1.1 | 2.98 |
Notes. We also include the original values derived by Gandolfi et al. (2018) and Huang et al. (2018) for comparison. (a) From spectroscopy and isochrones. (b)From spectroscopy.
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