The Pristine Inner Galaxy Survey (PIGS) X. Probing the early chemical evolution of the Sagittarius dwarf galaxy with carbon abundances

Federico Sestito; Anke Ardern-Arentsen; Sara Vitali; Martin Montelius; Romain Lucchesi; Kim A. Venn; Nicolas F. Martin; Julio F. Navarro; Else Starkenburg

doi:10.1051/0004-6361/202451258

The Pristine Inner Galaxy Survey (PIGS) X. Probing the early chemical evolution of the Sagittarius dwarf galaxy with carbon abundances

Federico Sestito, Anke Ardern-Arentsen, Sara Vitali, Martin Montelius, Romain Lucchesi, Kim A. Venn, Nicolas F. Martin, Julio F. Navarro, Else Starkenburg

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

Abstract

We aim to constrain the chemo-dynamical properties of the Sagittarius (Sgr) dwarf galaxy using carbon abundances. Our sample from the \textit{Pristine} Inner Galaxy Survey (PIGS) includes $\sim 350$ metal-poor ([Fe/H]~$+0.7$) as in the Galaxy under-predicts the number of CEMP stars in DGs, and for Sgr a cut at [C/Fe]$~\sim +0.35$ may be more appropriate, which brings the frequency of CEMP stars in agreement with that in the Galaxy.

Original language	English
Article number	A333
Pages (from-to)	1-16
Number of pages	16
Journal	Astronomy & Astrophysics
Volume	690
Issue number	October 2024
Early online date	22 Oct 2024
DOIs	https://doi.org/10.1051/0004-6361/202451258
Publication status	E-pub ahead of print - 22 Oct 2024

Keywords

astro-ph.GA
astro-ph.SR

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10.1051/0004-6361/202451258Licence: CC BY

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© 2024 The Author(s). Published by EDP Sciences. This is an open access article distributed under the Creative Commons Attribution License, to view a copy of the license, see: https://creativecommons.org/licenses/by/4.0/
Final published version, 3.18 MBLicence: CC BY

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Sestito, F., Ardern-Arentsen, A., Vitali, S., Montelius, M., Lucchesi, R., Venn, K. A., Martin, N. F., Navarro, J. F., & Starkenburg, E. (2024). The Pristine Inner Galaxy Survey (PIGS) X. Probing the early chemical evolution of the Sagittarius dwarf galaxy with carbon abundances. Astronomy & Astrophysics, 690(October 2024), 1-16. Article A333. Advance online publication. https://doi.org/10.1051/0004-6361/202451258

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abstract = " We aim to constrain the chemo-dynamical properties of the Sagittarius (Sgr) dwarf galaxy using carbon abundances. Our sample from the \textit{Pristine} Inner Galaxy Survey (PIGS) includes $\sim 350$ metal-poor ([Fe/H]~$+0.7$) as in the Galaxy under-predicts the number of CEMP stars in DGs, and for Sgr a cut at [C/Fe]$~\sim +0.35$ may be more appropriate, which brings the frequency of CEMP stars in agreement with that in the Galaxy. ",

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author = "Federico Sestito and Anke Ardern-Arentsen and Sara Vitali and Martin Montelius and Romain Lucchesi and Venn, {Kim A.} and Martin, {Nicolas F.} and Navarro, {Julio F.} and Else Starkenburg",

note = "{\textcopyright} 2024 The Author(s). Published by EDP Sciences. This is an open access article distributed under the Creative Commons Attribution License, to view a copy of the license, see: https://creativecommons.org/licenses/by/4.0/",

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doi = "10.1051/0004-6361/202451258",

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Sestito, F, Ardern-Arentsen, A, Vitali, S, Montelius, M, Lucchesi, R, Venn, KA, Martin, NF, Navarro, JF & Starkenburg, E 2024, 'The Pristine Inner Galaxy Survey (PIGS) X. Probing the early chemical evolution of the Sagittarius dwarf galaxy with carbon abundances', Astronomy & Astrophysics, vol. 690, no. October 2024, A333, pp. 1-16. https://doi.org/10.1051/0004-6361/202451258

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T1 - The Pristine Inner Galaxy Survey (PIGS) X. Probing the early chemical evolution of the Sagittarius dwarf galaxy with carbon abundances

AU - Sestito, Federico

AU - Ardern-Arentsen, Anke

AU - Vitali, Sara

AU - Montelius, Martin

AU - Lucchesi, Romain

AU - Venn, Kim A.

AU - Martin, Nicolas F.

AU - Navarro, Julio F.

AU - Starkenburg, Else

N1 - © 2024 The Author(s). Published by EDP Sciences. This is an open access article distributed under the Creative Commons Attribution License, to view a copy of the license, see: https://creativecommons.org/licenses/by/4.0/

PY - 2024/10/22

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AB - We aim to constrain the chemo-dynamical properties of the Sagittarius (Sgr) dwarf galaxy using carbon abundances. Our sample from the \textit{Pristine} Inner Galaxy Survey (PIGS) includes $\sim 350$ metal-poor ([Fe/H]~$+0.7$) as in the Galaxy under-predicts the number of CEMP stars in DGs, and for Sgr a cut at [C/Fe]$~\sim +0.35$ may be more appropriate, which brings the frequency of CEMP stars in agreement with that in the Galaxy.

KW - astro-ph.GA

KW - astro-ph.SR

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DO - 10.1051/0004-6361/202451258

M3 - Article

SN - 0004-6361

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SP - 1

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JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

IS - October 2024

M1 - A333

ER -

The Pristine Inner Galaxy Survey (PIGS) X. Probing the early chemical evolution of the Sagittarius dwarf galaxy with carbon abundances

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Keywords

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