GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI
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Author
Allende, Prieto, C.Aguado, D.S.
González, Hernández, J.I.
Rebolo, R.
Najita, J.
Manser, C.J.
Rockosi, C.
Slepian, Z.
Mezcua, M.
Valluri, M.
Ezzeddine, R.
Koposov, S.E.
Cooper, A.P.
Dey, A.
Gänsicke, B.T.
Li, T.S.
Cunha, K.
Zou, S.
Aguilar, J.N.
Ahlen, S.
Brooks, D.
Claybaugh, T.
Cole, S.
Eftekharzadeh, S.
Fanning, K.
Forero-Romero, J.
Gontcho, S.G.A.
Honscheid, K.
Jablonka, P.
Kehoe, R.
Kisner, T.
Landriau, M.
de la Peña, F.
Meisner, A.
Miquel, R.
Moustakas, J.
Nie, J.
Poppett, C.
Prada, F.
Rezaie, M.
Rossi, G.
Sánchez, E.
Schubnell, M.
Sharples, R.
Siudek, M.
Smith, V.V.
Tarlé, G.
Vincenzo, F.
Weaver, B.A.
Zhou, Z.
Zou, H.
Affiliation
Steward Observatory, University of ArizonaIssue Date
2023-11-01
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Institute of PhysicsCitation
Carlos Allende Prieto et al 2023 ApJ 957 76Journal
Astrophysical JournalRights
© 2023. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
The observations from the Dark Energy Spectroscopic Instrument (DESI) will significantly increase the numbers of known extremely metal-poor stars by a factor of ∼10, improving the sample statistics to study the early chemical evolution of the Milky Way and the nature of the first stars. In this paper we report follow-up observations with high signal-to-noise ratio of nine metal-poor stars identified during the DESI commissioning with the Optical System for Imaging and Low-Resolution Integrated Spectroscopy (OSIRIS) instrument on the 10.4 m Gran Telescopio Canarias. The analysis of the data using a well-vetted methodology confirms the quality of the DESI spectra and the performance of the pipelines developed for the data reduction and analysis of DESI data. © 2023. The Author(s). Published by the American Astronomical Society.Note
Open access journalISSN
0004-637XVersion
Final Published Versionae974a485f413a2113503eed53cd6c53
10.3847/1538-4357/acfa96
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Except where otherwise noted, this item's license is described as © 2023. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.