The Pristine survey -- XII: Gemini-GRACES chemo-dynamical study of newly discovered extremely metal-poor stars in the Galaxy

Collin L. Kielty; Kim A. Venn; Federico Sestito; Else Starkenburg; Nicolas F. Martin; David S. Aguado; Anke Arentsen; Sébastien Fabbro; Jonay I. González Hernández; Vanessa Hill; Pascale Jablonka; Carmela Lardo; Lyudmila I. Mashonkina; Julio F. Navarro; Chris Sneden; Guillaume F. Thomas; Kris Youakim; Spencer Bialek; Rubén Sánchez-Janssen

doi:10.1093/mnras/stab1783

The Pristine survey -- XII: Gemini-GRACES chemo-dynamical study of newly discovered extremely metal-poor stars in the Galaxy

Collin L. Kielty, Kim A. Venn, Federico Sestito, Else Starkenburg, Nicolas F. Martin, David S. Aguado, Anke Arentsen, Sébastien Fabbro, Jonay I. González Hernández, Vanessa Hill, Pascale Jablonka, Carmela Lardo, Lyudmila I. Mashonkina, Julio F. Navarro, Chris Sneden, Guillaume F. Thomas, Kris Youakim, Spencer Bialek, Rubén Sánchez-Janssen

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Abstract

High-resolution optical spectra of 30 metal-poor stars selected from the \Pristine\ survey are presented, based on observations taken with the Gemini Observatory GRACES spectrograph. Stellar parameters \teff and \logg are determined using a Gaia DR2 colour-temperature calibration and surface gravity from the Stefan-Boltzmann equation. GRACES spectra are used to determine chemical abundances (or upper-limits) for 20 elements (Li, O, Na, Mg, K, Ca, Ti, Sc, Cr, Mn, Fe, Ni, Cu, Zn, Y, Zr, Ba, La, Nd, Eu). These stars are confirmed to be metal-poor ([Fe/H]$

Original language	Undefined/Unknown
Journal	Monthly Notices of the Royal Astronomical Society
DOIs	https://doi.org/10.1093/mnras/stab1783
Publication status	Published - 7 Dec 2020

Keywords

astro-ph.GA
astro-ph.SR

Access to Document

10.1093/mnras/stab1783

2012.03960v2

Cite this

Kielty, C. L., Venn, K. A., Sestito, F., Starkenburg, E., Martin, N. F., Aguado, D. S., Arentsen, A., Fabbro, S., Hernández, J. I. G., Hill, V., Jablonka, P., Lardo, C., Mashonkina, L. I., Navarro, J. F., Sneden, C., Thomas, G. F., Youakim, K., Bialek, S., & Sánchez-Janssen, R. (2020). The Pristine survey -- XII: Gemini-GRACES chemo-dynamical study of newly discovered extremely metal-poor stars in the Galaxy. Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/stab1783

@article{423a7537f3da409ea80787b7c16add8d,

title = "The Pristine survey -- XII: Gemini-GRACES chemo-dynamical study of newly discovered extremely metal-poor stars in the Galaxy",

abstract = " High-resolution optical spectra of 30 metal-poor stars selected from the \Pristine\ survey are presented, based on observations taken with the Gemini Observatory GRACES spectrograph. Stellar parameters \teff and \logg are determined using a Gaia DR2 colour-temperature calibration and surface gravity from the Stefan-Boltzmann equation. GRACES spectra are used to determine chemical abundances (or upper-limits) for 20 elements (Li, O, Na, Mg, K, Ca, Ti, Sc, Cr, Mn, Fe, Ni, Cu, Zn, Y, Zr, Ba, La, Nd, Eu). These stars are confirmed to be metal-poor ([Fe/H]$",

keywords = "astro-ph.GA, astro-ph.SR",

author = "Kielty, {Collin L.} and Venn, {Kim A.} and Federico Sestito and Else Starkenburg and Martin, {Nicolas F.} and Aguado, {David S.} and Anke Arentsen and S{\'e}bastien Fabbro and Hern{\'a}ndez, {Jonay I. Gonz{\'a}lez} and Vanessa Hill and Pascale Jablonka and Carmela Lardo and Mashonkina, {Lyudmila I.} and Navarro, {Julio F.} and Chris Sneden and Thomas, {Guillaume F.} and Kris Youakim and Spencer Bialek and Rub{\'e}n S{\'a}nchez-Janssen",

note = "18 pages, 15 figures plus additional figures and tables in the appendix. MNRAS accepted",

year = "2020",

month = dec,

day = "7",

doi = "10.1093/mnras/stab1783",

language = "Undefined/Unknown",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press (OUP)",

}

Kielty, CL, Venn, KA, Sestito, F, Starkenburg, E, Martin, NF, Aguado, DS, Arentsen, A, Fabbro, S, Hernández, JIG, Hill, V, Jablonka, P, Lardo, C, Mashonkina, LI, Navarro, JF, Sneden, C, Thomas, GF, Youakim, K, Bialek, S & Sánchez-Janssen, R 2020, 'The Pristine survey -- XII: Gemini-GRACES chemo-dynamical study of newly discovered extremely metal-poor stars in the Galaxy', Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/stab1783

TY - JOUR

T1 - The Pristine survey -- XII

T2 - Gemini-GRACES chemo-dynamical study of newly discovered extremely metal-poor stars in the Galaxy

AU - Kielty, Collin L.

AU - Venn, Kim A.

AU - Sestito, Federico

AU - Starkenburg, Else

AU - Martin, Nicolas F.

AU - Aguado, David S.

AU - Arentsen, Anke

AU - Fabbro, Sébastien

AU - Hernández, Jonay I. González

AU - Hill, Vanessa

AU - Jablonka, Pascale

AU - Lardo, Carmela

AU - Mashonkina, Lyudmila I.

AU - Navarro, Julio F.

AU - Sneden, Chris

AU - Thomas, Guillaume F.

AU - Youakim, Kris

AU - Bialek, Spencer

AU - Sánchez-Janssen, Rubén

N1 - 18 pages, 15 figures plus additional figures and tables in the appendix. MNRAS accepted

PY - 2020/12/7

Y1 - 2020/12/7

N2 - High-resolution optical spectra of 30 metal-poor stars selected from the \Pristine\ survey are presented, based on observations taken with the Gemini Observatory GRACES spectrograph. Stellar parameters \teff and \logg are determined using a Gaia DR2 colour-temperature calibration and surface gravity from the Stefan-Boltzmann equation. GRACES spectra are used to determine chemical abundances (or upper-limits) for 20 elements (Li, O, Na, Mg, K, Ca, Ti, Sc, Cr, Mn, Fe, Ni, Cu, Zn, Y, Zr, Ba, La, Nd, Eu). These stars are confirmed to be metal-poor ([Fe/H]$

AB - High-resolution optical spectra of 30 metal-poor stars selected from the \Pristine\ survey are presented, based on observations taken with the Gemini Observatory GRACES spectrograph. Stellar parameters \teff and \logg are determined using a Gaia DR2 colour-temperature calibration and surface gravity from the Stefan-Boltzmann equation. GRACES spectra are used to determine chemical abundances (or upper-limits) for 20 elements (Li, O, Na, Mg, K, Ca, Ti, Sc, Cr, Mn, Fe, Ni, Cu, Zn, Y, Zr, Ba, La, Nd, Eu). These stars are confirmed to be metal-poor ([Fe/H]$

KW - astro-ph.GA

KW - astro-ph.SR

U2 - 10.1093/mnras/stab1783

DO - 10.1093/mnras/stab1783

M3 - Article

SN - 0035-8711

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

ER -