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Catalog of atmospheric parameters and chemical abundances from Gaia RVS spectra with convolutional neural network

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DataCite Commons2025-03-31 更新2024-07-13 收录
下载链接:
https://gaia.aip.de/metadata/gaiadr3_contrib/cnn_gaia_rvs_catalog/
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资源简介:
The table contains atmospheric parameters (Teff, log(g), [M/H]), chemical abundances ([Fe/H], [alpha/M]), and their associated uncertainties for 886080 stars. These labels were derived using a convolutional neural network applied to the full Gaia data product in the form of RVS and XP spectra, parallaxes, and stellar magnitudes. As training labels, we used a set of 45000 stars with high-quality labels from APOGEE DR17. We provide a boundary_flag that should be used to filter the stars outside of the training sample limits. We recommend using flag_boundary = '00000000' for science applications. The full table can be downloaded via following links in FITS or CSV format: cnn_gaia_rvs_catalog_guiglion_et_al_2023_v2.fits cnn_gaia_rvs_catalog_guiglion_et_al_2023_v2.csv
提供机构:
Leibniz Institute for Astrophysics Potsdam (AIP)
创建时间:
2023-12-11
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