Metallicities of 20 Million Giant Stars Based on Gaia XP spectra (Yang+, 2025) ======================================================================================================================== Description of file: See also: Byte-by-byte Description of file: Gaiaparas.fits ------------------------------------------------------------------------------------------------------------------------ Label Explanations Format ------------------------------------------------------------------------------------------------------------------------ source_id Unique source identifier for Gaia XP spectra Long gl Galactic longitude (deg) Double gb Galactic latitude (deg) Double ra Right ascension (deg) Float dec Declination (deg) Float phot_bp_rp_excess_factor BP/RP excess factor from Gaia DR3 Float BP_RP0 Intrinsic BP-RP color after color correction Float PHOT_G_MEAN_MAG_MG G-band photometry from Gaia DR3 Float M_G Absolute magnitude in the G-band from Gaia DR3 Float EBV Interstellar extinction from the Schlegel et al. (1998) dust-reddening map Float rgeo Geometric distances from Bailer-Jones et al. (2021) Float FEH Metallicity derived from the the uncertainty-aware CSNet Double FEH_err Estimated error of [Fe/H] Double ------------------------------------------------------------------------------------------------------------------------ =========================================================================================================================