AspGap: Augmented Stellar Parameters and Abundances for 24 million RGB stars from Gaia XP
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AspGap is a novel data-driven model to perform regressions with the XP spectra, augmented by transfer learning from high-resolution APOGEE spectra. Using a training set of stellar labels from APOGEE, we demonstrate that AspGap can deliver effective temperature, surface gravity, metallicity, and alpha abundance to accuracies of ~ 1%, 0.15 dex, 0.07 dex, and 0.024 dex, respectively.
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Zenodo创建时间：
2023-06-04
