GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI

Carlos Allende Prieto; David S. Aguado; Jonay I. González Hernández; Rafael Rebolo; Joan Najita; Christopher J. Manser; Constance Rockosi; Zachary Slepian; Mar Mezcua; Monica Valluri; Rana Ezzeddine; Sergey E. Koposov; Andrew P. Cooper; Arjun Dey; Boris T. Gänsicke; Ting S. Li; Katia Cunha; Siwei Zou; Jessica Nicole Aguilar; Steven Ahlen; David Brooks; Todd Claybaugh; Shaun Cole; Sarah Eftekharzadeh; Kevin Fanning; Jaime Forero-Romero; Satya Gontcho A. Gontcho; Klaus Honscheid; Pascale Jablonka; Robert Kehoe; Theodore Kisner; Martin Landriau; Axel de la Macorra; Aaron Meisner; Ramón Miquel; John Moustakas; Jundan Nie; Claire Poppett; Francisco Prada; Mehdi Rezaie; Graziano Rossi; Eusebio Sánchez; Michael Schubnell; Ray Sharples; Malgorzata Siudek; Verne V. Smith; Gregory Tarlé; Fiorenzo Vincenzo; Benjamin Alan Weaver; Zhimin Zhou; Hu Zou

doi:10.3847/1538-4357/acfa96

GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI

Carlos Allende Prieto
, David S. Aguado
, Jonay I. González Hernández
, Rafael Rebolo
, Joan Najita
, Christopher J. Manser
, Constance Rockosi
, Zachary Slepian
, Mar Mezcua
, Monica Valluri
, Rana Ezzeddine
, Sergey E. Koposov
, Andrew P. Cooper
, Arjun Dey
, Boris T. Gänsicke
, Ting S. Li
, Katia Cunha
, Siwei Zou
, Jessica Nicole Aguilar
, Steven Ahlen

David Brooks, Todd Claybaugh, Shaun Cole, Sarah Eftekharzadeh, Kevin Fanning, Jaime Forero-Romero, Satya Gontcho A. Gontcho, Klaus Honscheid, Pascale Jablonka, Robert Kehoe, Theodore Kisner, Martin Landriau, Axel de la Macorra, Aaron Meisner, Ramón Miquel, John Moustakas, Jundan Nie, Claire Poppett, Francisco Prada, Mehdi Rezaie, Graziano Rossi, Eusebio Sánchez, Michael Schubnell, Ray Sharples, Malgorzata Siudek, Verne V. Smith, Gregory Tarlé, Fiorenzo Vincenzo, Benjamin Alan Weaver, Zhimin Zhou, Hu Zou

Steward Observatory

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

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.

Original language	English (US)
Article number	76
Journal	Astrophysical Journal
Volume	957
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/acfa96
State	Published - Nov 1 2023

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4357/acfa96

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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., ... Zou, H. (2023). GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI. Astrophysical Journal, 957(2), Article 76. https://doi.org/10.3847/1538-4357/acfa96

Allende Prieto, C, Aguado, DS, González Hernández, JI, Rebolo, R, Najita, J, Manser, CJ, Rockosi, C, Slepian, Z, Mezcua, M, Valluri, M, Ezzeddine, R, Koposov, SE, Cooper, AP, Dey, A, Gänsicke, BT, Li, TS, Cunha, K, Zou, S, Aguilar, JN, Ahlen, S, Brooks, D, Claybaugh, T, Cole, S, Eftekharzadeh, S, Fanning, K, Forero-Romero, J, Gontcho, SGA, Honscheid, K, Jablonka, P, Kehoe, R, Kisner, T, Landriau, M, de la Macorra, A, 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, VV, Tarlé, G, Vincenzo, F, Weaver, BA, Zhou, Z & Zou, H 2023, 'GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI', Astrophysical Journal, vol. 957, no. 2, 76. https://doi.org/10.3847/1538-4357/acfa96

@article{f722d0e3393345b497da53e55bbc2e6d,

title = "GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI",

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.",

author = "\{Allende Prieto\}, Carlos and Aguado, \{David S.\} and \{Gonz{\'a}lez Hern{\'a}ndez\}, \{Jonay I.\} and Rafael Rebolo and Joan Najita and Manser, \{Christopher J.\} and Constance Rockosi and Zachary Slepian and Mar Mezcua and Monica Valluri and Rana Ezzeddine and Koposov, \{Sergey E.\} and Cooper, \{Andrew P.\} and Arjun Dey and G{\"a}nsicke, \{Boris T.\} and Li, \{Ting S.\} and Katia Cunha and Siwei Zou and Aguilar, \{Jessica Nicole\} and Steven Ahlen and David Brooks and Todd Claybaugh and Shaun Cole and Sarah Eftekharzadeh and Kevin Fanning and Jaime Forero-Romero and Gontcho, \{Satya Gontcho A.\} and Klaus Honscheid and Pascale Jablonka and Robert Kehoe and Theodore Kisner and Martin Landriau and \{de la Macorra\}, Axel and Aaron Meisner and Ram{\'o}n Miquel and John Moustakas and Jundan Nie and Claire Poppett and Francisco Prada and Mehdi Rezaie and Graziano Rossi and Eusebio S{\'a}nchez and Michael Schubnell and Ray Sharples and Malgorzata Siudek and Smith, \{Verne V.\} and Gregory Tarl{\'e} and Fiorenzo Vincenzo and Weaver, \{Benjamin Alan\} and Zhimin Zhou and Hu Zou",

note = "Publisher Copyright: {\textcopyright} 2023. The Author(s). Published by the American Astronomical Society.",

year = "2023",

month = nov,

day = "1",

doi = "10.3847/1538-4357/acfa96",

language = "English (US)",

volume = "957",

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T1 - GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI

AU - Allende Prieto, Carlos

AU - Aguado, David S.

AU - González Hernández, Jonay I.

AU - Rebolo, Rafael

AU - Najita, Joan

AU - Manser, Christopher J.

AU - Rockosi, Constance

AU - Slepian, Zachary

AU - Mezcua, Mar

AU - Valluri, Monica

AU - Ezzeddine, Rana

AU - Koposov, Sergey E.

AU - Cooper, Andrew P.

AU - Dey, Arjun

AU - Gänsicke, Boris T.

AU - Li, Ting S.

AU - Cunha, Katia

AU - Zou, Siwei

AU - Aguilar, Jessica Nicole

AU - Ahlen, Steven

AU - Brooks, David

AU - Claybaugh, Todd

AU - Cole, Shaun

AU - Eftekharzadeh, Sarah

AU - Fanning, Kevin

AU - Forero-Romero, Jaime

AU - Gontcho, Satya Gontcho A.

AU - Honscheid, Klaus

AU - Jablonka, Pascale

AU - Kehoe, Robert

AU - Kisner, Theodore

AU - Landriau, Martin

AU - de la Macorra, Axel

AU - Meisner, Aaron

AU - Miquel, Ramón

AU - Moustakas, John

AU - Nie, Jundan

AU - Poppett, Claire

AU - Prada, Francisco

AU - Rezaie, Mehdi

AU - Rossi, Graziano

AU - Sánchez, Eusebio

AU - Schubnell, Michael

AU - Sharples, Ray

AU - Siudek, Malgorzata

AU - Smith, Verne V.

AU - Tarlé, Gregory

AU - Vincenzo, Fiorenzo

AU - Weaver, Benjamin Alan

AU - Zhou, Zhimin

AU - Zou, Hu

PY - 2023/11/1

Y1 - 2023/11/1

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/105026920816

UR - https://www.scopus.com/pages/publications/105026920816#tab=citedBy

U2 - 10.3847/1538-4357/acfa96

DO - 10.3847/1538-4357/acfa96

M3 - Article

AN - SCOPUS:105026920816

SN - 0004-637X

VL - 957

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 76

ER -

GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI

Abstract

ASJC Scopus subject areas

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