Robust Data-driven Metallicities for 175 Million Stars from Gaia XP Spectra

This is the dataset accompanying Andrae et al (2023), "Robust Data-driven Metallicities for 175 Million Stars from Gaia XP Spectra". Table 1 (174,922,161 rows) contains XGBoost parameters (temperature, surface gravity, and metallicity) for all stars in the sample. Table 2 (17,558,141 rows) contains Gaia DR3 parameters and XGBoost parameters for a vetted sample of RGB stars with reliable measurements. The tables are provided in compressed CSV and FITS format, and the full data model is described in the accompanying paper.

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