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Table 2
Spectroscopic parameters of GJ 9827 as derived from the co-added HARPS (top) and HARPS-N (bottom) spectra using the two methods described in Sect 3.1.
| Method | Teff | log g⋆ | [Fe/H] | R⋆ | v sin i⋆ |
|---|---|---|---|---|---|
| (K) | (cgs) | (dex) | (R⊙) | (km s−1) | |
| HARPS | |||||
| SpecMatch-Emp | 4203 ± 70 | ..... | −0.27 ± 0.12 | 0.648 ± 0.065 | ..... |
| SME 5.2.2 | 4204 ± 90 | 4.52 ± 0.20 | −0.50 ± 0.20 | ..... | 1.5 ± 1.0 |
| HARPS-N | |||||
| SpecMatch-Emp | 4234 ± 70 | ..... | −0.30 ± 0.12 | 0.651 ± 0.065 | ..... |
| SME 5.2.2 | 4236 ± 90 | 4.44 ± 0.20 | −0.53 ± 0.20 | ..... | 1.5 ± 1.0 |
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