Table 2
Summary of the comparison between RVs and external catalogues.
| Catalogue | Nb | Outliers | ⟨G⟩ | RV difference | RV uwu | Correlations |
|---|---|---|---|---|---|---|
| GALAH | 571 | 1% | 11.9 | 0.16 ±0.02 | 1.29 ±0.04 | |
| SIM | 1927 | 4% | 9.4 | 0.24 ±0.006 | 1.12 ±0.02 | GBP−GRP |
| APOGEE | 60 282 | 2% | 12.3 | 0.24 ±0.002 | 1.285 ±0.004 | G, GBP−GRP, Teff, log g |
| RAVE | 373 755 | 3% | 11.4 | 0.27 ±0.002 | 1.480 ±0.002 | G, GBP−GRP, Teff, log g, [Fe/H] |
| GES | 2201 | 3% | 12.7 | 0.13 ±0.02 | 1.33 ±0.02 | G |
| UMMSV | 6843 | 4% | 7.5 | 0.15 ±0.003 | 1.38 ±0.01 | G, GBP−GRP |
Notes. Thetotal number of stars used in the comparison (Nb), the percentage of outliers (at 5σ) excluded, and the median G of the sample are presented. The RV difference (Gaia-Ext, in km s−1) and the unit-weight uncertainty (uwu) that need to be applied to the data to adjust the differences are indicated in italics when they are significant (p-value limit: 0.01). Significant correlations of the differences with other parameters are indicated in the last column and may also originate from the external catalogue.
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