Beyond Gaia DR3: Tracing the [$\alpha$/M]-[M/H] bimodality from the inner to the outer Milky Way disc with Gaia-RVS and convolutional neural networks

G. Guiglion,S. Nepal,Cristina Chiappini,Sergey Khoperskov,G. Traven, A. B. A. Queiroz,Matthias Steinmetz,M. Valentini,Y. Fournier,A. Vallenari,K. Youakim,M. Bergemann,Szabolcs Mészáros,S. Lucatello,R. Sordo,S. Fabbro,Ivan Minchev,G. Tautvaišienė,Š. Mikolaitis,J. Montalbán

arXiv (Cornell University)（2023）

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摘要

In June 2022, Gaia DR3 has provided the astronomy community with about one million spectra from the Radial Velocity Spectrometer (RVS) covering the CaII triplet region. However, one-third of the published spectra have 15

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关键词

outer milky way disc,milky way,gaia dr3,bimodality,neural-networks

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