Table 3.
Gaia DR3 Apsis quality assessment for main sequence stars with 11 500 K ≥ Teff ≥ 3000 K and [M/H] ≈ 0.
| Quantity | Typical offset | Recommendation (2) |
|---|---|---|
| FLAME age | Varies with spectral type, up to > 10 Gyr | Do not use |
| GSP-Phot [M/H] | Ensemble [M/H] 0.15–0.20 dex too low | Do not use for individual stars |
| GSP-Phot Teff | ≈200 K too low for BP − RP < 1.35 mag, bifurcates for BP − RP > ;1.35 mag | Ok with ±250 K uncertainty |
| GSP-Phot log g | 0.1–0.2 cm s−2 too low for BP − RP < 3.0 mag | Ok with ±0.2 cm s−2 uncertainty |
| GSP-Spec [M/H] (1) | Ensemble [M/H] ≈0.1 dex too low | Ok with ±0.2 dex uncertainty |
| GSP-Spec Teff | Bifurcates for 1.35 < BP − RP < 1.65 mag | Ok |
| GSP-Spec log g(1) | Non-physical variation with spectral type | Do not use |
Notes. (1)Recalibrated according to Recio-Blanco et al. (2023). (2)The uncertainties quoted in the column recommendation should be understood as systematic uncertainties in addition to the quantile estimates provided by Apsis. “ok” indicates that the estimates are largely in agreement with estimates according to PARSEC stellar models.
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