Table 2
Coralie RV standard stars.
| Star | SpType | FWHM (km s−1) | COR07 rv (m s−1) | COR07 err (m s−1) | COR14 rv (m s−1) | COR14 err (m s−1) | COR07–COR14 (m s−1) | Comb. err (m s−1) |
|---|---|---|---|---|---|---|---|---|
| HD1581 | F9.5V | 7.83 | 9315.71 | 1.34 | 9342.99 | 0.40 | −27.28 | 1.39 |
| HD65907A | F9.5V | 7.55 | 14987.94 | 3.27 | 15 017.66 | 0.26 | −29.72 | 3.28 |
| HD108309 | G2V | 8.37 | 30 617.57 | 2.12 | 30 642.60 | 0.33 | −25.03 | 2.14 |
| HD 144585 | G2V | 8.52 | −14016.01 | 2.12 | −13 995.28 | 0.32 | −20.73 | 2.14 |
| HD20794 | G6V | 7.67 | 87 907.57 | 0.66 | 87 938.41 | 0.23 | −30.84 | 0.69 |
| HD 10700 | G8V | 8.19 | −16568.22 | 1.24 | −16546.5 | 0.20 | −21.72 | 1.25 |
| HD 161612 | G8V | 8.40 | 2488.82 | 1.26 | 2509.41 | 0.50 | −20.59 | 1.35 |
| HD 190248 | G8IV | 8.37 | −21 511.53 | 3.78 | −21 492.73 | 0.29 | −18.8 | 3.79 |
| HIP 75386 | G6III | 8.37 | −13 723.49 | 3.74 | −13 694.49 | 3.37 | −29.00 | 5.03 |
| HIP 10440 | G9III | 8.88 | 20615.30 | 3.95 | 20 641.42 | 2.72 | −26.12 | 4.79 |
| weighted average difference COR07–COR14 (m s−1): | −26.8 | 0.5 | ||||||
Notes. Coralie RV standard star measurements in m s−1. The finer scale compared to Table 1 is warranted by the better precision due to the available simultaneous drift correction. COR07 refers to Coralie after instrument upgrades installed in 2007 and before upgrades installed in 2014, label henceforth as COR14. The RV zero-points and their uncertainties were determined using DACE5 (Buchschacher & Alesina 2019). The two last columns list the difference between COR07 minus COR14 and the square-summed errors. The weighted average of the offsets is −26.8 ± 0.5 m s−1. NB: These offsets have not yet been applied to VELOCE data.
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