Table 1
Summary of the RV and Bl data set characteristics.
| Selection | nlines | RMS | Precision | K |  |
RMSres |
|---|---|---|---|---|---|---|
| Radial velocity | ||||||
| [m s−1] | [m s−1] | [m s−1] | [m s−1] | |||
| Full | 3240 | 167 | 5 | 124 ± 26 | 23.2 | 140 |
| d < 0.6 | 1058 | 208 | 22 | 147 ± 32 | 36.6 | 176 |
| 0.6 < d < 0.8 | 926 | 183 | 10 | 141 ± 28 | 27.1 | 152 |
| d > 0.8 | 1231 | 157 | 8 | 107 ± 25 | 22.0 | 136 |
| λ > 550 nm | 314 | 168 | 8 | 125 ± 26 | 23.6 | 141 |
| λ < 550 nm | 2872 | 173 | 7 | 121 ± 27 | 26.2 | 149 |
| geff > 1.2 | 1649 | 199 | 8 | 149 ± 31 | 32.9 | 167 |
| geff < 1.2 | 1495 | 151 | 7 | 104 ± 24 | 20.0 | 130 |
| Longitudinal magnetic field | ||||||
| [G] | [G] | [G] | [G] | |||
| Full | 3240 | 133 | … | 158 ± 15 | 10.6 | 48 |
| d < 0.6 | 1058 | 200 | … | 222 ± 26 | 30.9 | 82 |
| 0.6 < d < 0.8 | 926 | 129 | … | 149 ± 16 | 12.7 | 53 |
| d > 0.8 | 1231 | 152 | … | 190 ± 15 | 10.1 | 46 |
| λ > 550 nm | 314 | 128 | … | 148 ± 15 | 10.4 | 48 |
| λ < 550 nm | 2872 | 146 | … | 184 ± 15 | 11.6 | 50 |
| geff > 1.2 | 1649 | 137 | … | 157 ± 17 | 14.8 | 55 |
| geff < 1.2 | 1495 | 138 | … | 170 ± 14 | 8.9 | 51 |
Notes. The columns are: (1) parametric criteria used, (2) number of lines in the sub-mask, (3) RMS of the data set, (4) RV precision from the MC simulations, (5) semi-amplitude of the sinusoidal fit to the data set, (6) reduced χ2 (three fit parameters and 57 observations for RV and 20 observations for Bl), and (7) RMS of the fit residuals. The reported values for Bl refer to the epoch with the most observations (2010), which was used in Sect. 2, but the results are also analogous for 2007 (the second densest data set).
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