The Astrophysical Journal (Jan 2023)
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
Affiliations
- Carlos Allende Prieto
- ORCiD
- Instituto de Astrofísica de Canarias , Vía Láctea, E-38205 La Laguna, Tenerife, Spain ; [email protected]; Universidad de La Laguna , Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain
- David S. Aguado
- ORCiD
- Instituto de Astrofísica de Canarias , Vía Láctea, E-38205 La Laguna, Tenerife, Spain ; [email protected]; Universidad de La Laguna , Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain; Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze , Via G. Sansone 1, I-50019 Sesto Fiorentino, Italy
- Jonay I. González Hernández
- ORCiD
- Instituto de Astrofísica de Canarias , Vía Láctea, E-38205 La Laguna, Tenerife, Spain ; [email protected]; Universidad de La Laguna , Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain
- Rafael Rebolo
- ORCiD
- Instituto de Astrofísica de Canarias , Vía Láctea, E-38205 La Laguna, Tenerife, Spain ; [email protected]; Universidad de La Laguna , Departamento de Astrofísica, E-38206 La Laguna, Tenerife, Spain; Consejo Superior de Investigaciones Científicas , Spain
- Joan Najita
- ORCiD
- NSF's NOIRLab , 950 N. Cherry Avenue, Tucson, AZ 85719, USA
- Christopher J. Manser
- ORCiD
- Imperial College London , South Kensington Campus, London SW7 2AZ, UK
- Constance Rockosi
- ORCiD
- Department of Astronomy and Astrophysics, University of California , Santa Cruz, 1156 High Street, Santa Cruz, CA 95065, USA; University of California Observatories, 1156 High Street, Sana Cruz, CA 95065, USA
- Zachary Slepian
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- Mar Mezcua
- ORCiD
- Institute of Space Sciences , ICE-CSIC, Campus UAB, Carrer de Can Magrans s/n, E-08913 Bellaterra, Barcelona, Spain; Institut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, Spain
- Monica Valluri
- ORCiD
- Department of Astronomy, University of Michigan , Ann Arbor, MI 48109, USA
- Rana Ezzeddine
- Department of Astronomy, University of Florida , 211 Bryant Space Science Center, P.O. Box 112055, Gainesville, FL 32611-2055, USA
- Sergey E. Koposov
- ORCiD
- Institute for Astronomy, University of Edinburgh , Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK; Institute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UK
- Andrew P. Cooper
- ORCiD
- Institute of Astronomy and Department of Physics, National Tsing Hua University , 101 Kuang-Fu Road Sec. 2, Hsinchu 30013, Taiwan; Center for Informatics and Computation in Astronomy, National Tsing Hua University , 101 Kuang-Fu Road Sec. 2, Hsinchu 30013, Taiwan; Physics Division, National Center for Theoretical Sciences , Taipei 10617, Taiwan
- Arjun Dey
- ORCiD
- NSF's NOIRLab , 950 N. Cherry Avenue, Tucson, AZ 85719, USA
- Boris T. Gänsicke
- ORCiD
- Department of Physics, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, UK
- Ting S. Li
- ORCiD
- Department of Astronomy & Astrophysics, University of Toronto , Toronto, ON M5S 3H4, Canada
- Katia Cunha
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Siwei Zou
- ORCiD
- Department of Astronomy, Tsinghua University , 30 Shuangqing Road, Haidian District, Beijing, 100190, People’s Republic of China
- Jessica Nicole Aguilar
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- Steven Ahlen
- ORCiD
- Physics Dept., Boston University , 590 Commonwealth Avenue, Boston, MA 02215, USA
- David Brooks
- ORCiD
- Department of Physics & Astronomy, University College London , Gower Street, London WC1E 6BT, UK
- Todd Claybaugh
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- Shaun Cole
- ORCiD
- Institute for Computational Cosmology, Department of Physics, Durham University , South Road, Durham DH1 3LE, UK
- Sarah Eftekharzadeh
- Universities Space Research Association, NASA Ames Research Centre , USA
- Kevin Fanning
- ORCiD
- The Ohio State University , Columbus, OH 43210, USA
- Jaime Forero-Romero
- ORCiD
- Departamento de Física, Universidad de los Andes , Cra. 1 No. 18A/10, Edificio Ip, CP 111711, Bogotá, Colombia
- Satya Gontcho A Gontcho
- ORCiD
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- Klaus Honscheid
- The Ohio State University , Columbus, OH 43210, USA; Center for Cosmology and AstroParticle Physics, The Ohio State University , 191 West Woodruff Avenue, Columbus, OH 43210, USA; Department of Physics, The Ohio State University , 191 West Woodruff Avenue, Columbus, OH 43210, USA
- Pascale Jablonka
- Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
- Robert Kehoe
- Department of Physics, Southern Methodist University , 3215 Daniel Avenue, Dallas, TX 75275, USA
- Theodore Kisner
- ORCiD
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- Martin Landriau
- ORCiD
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- Axel de la Macorra
- Instituto de Física, Universidad Nacional Autónoma de México , Cd. de México, C.P. 04510, Mexico
- Aaron Meisner
- ORCiD
- NSF's NOIRLab , 950 N. Cherry Avenue, Tucson, AZ 85719, USA
- Ramón Miquel
- Institució Catalana de Recerca i Estudis Avançats , Passeig de Lluís Companys, 23, E-08010 Barcelona, Spain; Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology , Campus UAB, E-08193 Bellaterra Barcelona, Spain
- John Moustakas
- ORCiD
- Department of Physics and Astronomy, Siena College , 515 Loudon Road, Loudonville, NY 12211, USA
- Jundan Nie
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100012, People’s Republic of China
- Claire Poppett
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA; Space Sciences Laboratory, University of California, Berkeley , 7 Gauss Way, Berkeley, CA 94720, USA; University of California, Berkeley , 110 Sproul Hall #5800, Berkeley, CA 94720, USA
- Francisco Prada
- Instituto de Astrofísica de Andalucía , Spain
- Mehdi Rezaie
- ORCiD
- Department of Physics, Kansas State University , 116 Cardwell Hall, Manhattan, KS 66506, USA
- Graziano Rossi
- Department of Physics and Astronomy, Sejong University , Seoul 143-747, Republic of Korea
- Eusebio Sánchez
- CIEMAT , Avenida Complutense 40, E-28040 Madrid, Spain
- Michael Schubnell
- Department of Physics, University of Michigan , Ann Arbor, MI 48109, USA; University of Michigan , Ann Arbor, MI 48109, USA
- Ray Sharples
- ORCiD
- Institute for Computational Cosmology, Department of Physics, Durham University , South Road, Durham DH1 3LE, UK; Centre for Advanced Instrumentation, Department of Physics, Durham University , South Road, Durham DH1 3LE, UK
- Malgorzata Siudek
- Institute of Space Sciences , ICE-CSIC, Campus UAB, Carrer de Can Magrans s/n, E-08913 Bellaterra, Barcelona, Spain
- Verne V. Smith
- NSF's NOIRLab , 950 N. Cherry Avenue, Tucson, AZ 85719, USA
- Gregory Tarlé
- ORCiD
- University of Michigan , Ann Arbor, MI 48109, USA
- Fiorenzo Vincenzo
- The Ohio State University , Columbus, OH 43210, USA; E.A. Milne Centre for Astrophysics, University of Hull , Hull HU6 7RX, UK
- Benjamin Alan Weaver
- NSF's NOIRLab , 950 N. Cherry Avenue, Tucson, AZ 85719, USA
- Zhimin Zhou
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100012, People’s Republic of China
- Hu Zou
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100012, People’s Republic of China
- DOI
- https://doi.org/10.3847/1538-4357/acfa96
- Journal volume & issue
-
Vol. 957,
no. 2
p. 76
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.
Keywords
