The data for Photometric metallicities of 14.5 million metal-poor stars from Gaia XP spectra

This catalog contains photometric metallicities for ~14.5 million metal-poor stars based on Gaia DR3 XP spectra. Key parameters include equatorial coordinates, distance, E(B−V) , intrinsic colors ( (GBP−GRP), (m-GBP ) ), predicted [Fe/H] values with errors, and dwarf/giant classification flags. This dataset serves as a powerful resource for investigating the early formation and evolutionary history of the Milky Way。