Article (Scientific journals)
Grids of stellar models with rotation. VI. Models from 0.8 to 120 M[SUB]⊙[/SUB] at a metallicity Z = 0.006
Eggenberger, Patrick; Ekström, Sylvia; Georgy, Cyril et al.
2021In Astronomy and Astrophysics, 652, p. 137
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Keywords :
stars: evolution; stars: rotation; stars: abundances
Abstract :
[en] Context. Grids of stellar models, computed with the same physical ingredients, allow one to study the impact of a given physics on a broad range of initial conditions and they are a key ingredient for modeling the evolution of galaxies. <BR /> Aims: We present here a grid of single star models for masses between 0.8 and 120 M[SUB]⊙[/SUB], with and without rotation for a mass fraction of heavy element Z = 0.006, representative of the Large Magellanic Cloud (LMC). <BR /> Methods: We used the GENeva stellar Evolution Code. The evolution was computed until the end of the central carbon-burning phase, the early asymptotic giant branch phase, or the core helium-flash for massive, intermediate, and low mass stars, respectively. <BR /> Results: The outputs of the present stellar models are well framed by the outputs of the two grids obtained by our group for metallicities above and below the one considered here. The models of the present work provide a good fit to the nitrogen surface enrichments observed during the main sequence for stars in the LMC with initial masses around 15 M[SUB]⊙[/SUB]. They also reproduce the slope of the luminosity function of red supergiants of the LMC well, which is a feature that is sensitive to the time-averaged mass loss rate over the red supergiant phase. The most massive black hole that can be formed from the present models at Z = 0.006 is around 55 M[SUB]⊙[/SUB]. No model in the range of mass considered will enter into the pair-instability supernova regime, while the minimal mass to enter the region of pair pulsation instability is around 60 M[SUB]⊙[/SUB] for the rotating models and 85 M[SUB]⊙[/SUB] for the nonrotating ones. <BR /> Conclusions: The present models are of particular interest for comparisons with observations in the LMC and also in the outer regions of the Milky Way. We provide public access to numerical tables that can be used for computing interpolated tracks and for population synthesis studies. <P />The numerical data of the present grid are directly accessible on the web page at <A href="https://www.unige.ch/sciences/astro/evolution/fr/base-de-donnees/">https://www.unige.ch/sciences/astro/evolution/fr/base-de-donnees/</A>.
Research center :
STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Eggenberger, Patrick;  Department of Astronomy, University of Geneva, Chemin Pegasi 51, 1290, Versoix, Switzerland
Ekström, Sylvia;  Department of Astronomy, University of Geneva, Chemin Pegasi 51, 1290, Versoix, Switzerland
Georgy, Cyril;  Department of Astronomy, University of Geneva, Chemin Pegasi 51, 1290, Versoix, Switzerland
Martinet, Sébastien;  Department of Astronomy, University of Geneva, Chemin Pegasi 51, 1290, Versoix, Switzerland
Pezzotti, Camilla;  Department of Astronomy, University of Geneva, Chemin Pegasi 51, 1290, Versoix, Switzerland
Nandal, Devesh;  Department of Astronomy, University of Geneva, Chemin Pegasi 51, 1290, Versoix, Switzerland
Meynet, Georges;  Department of Astronomy, University of Geneva, Chemin Pegasi 51, 1290, Versoix, Switzerland
Buldgen, Gaël ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Salmon, Sébastien ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Haemmerlé, Lionel;  Department of Astronomy, University of Geneva, Chemin Pegasi 51, 1290, Versoix, Switzerland
Maeder, André;  Department of Astronomy, University of Geneva, Chemin Pegasi 51, 1290, Versoix, Switzerland
Hirschi, Raphael;  Astrophysics Group, Keele University, Keele, Staffordshire, ST5 5BG, UK ; Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, 277-8583, Japan
Yusof, Norhasliza;  Department of Physics, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
Groh, José;  School of Physics, Trinity College Dublin, the University of Dublin, College Green, Dublin, Ireland
Farrell, Eoin;  School of Physics, Trinity College Dublin, the University of Dublin, College Green, Dublin, Ireland
Murphy, Laura;  School of Physics, Trinity College Dublin, the University of Dublin, College Green, Dublin, Ireland
Choplin, Arthur;  Institut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles (ULB), CP 226, 1050, Brussels, Belgium)
More authors (7 more) Less
Language :
English
Title :
Grids of stellar models with rotation. VI. Models from 0.8 to 120 M[SUB]⊙[/SUB] at a metallicity Z = 0.006
Publication date :
01 August 2021
Journal title :
Astronomy and Astrophysics
ISSN :
0004-6361
eISSN :
1432-0746
Publisher :
EDP Sciences, Les Ulis, France
Volume :
652
Pages :
A137
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
H2020 - 833925 - STAREX - STARs at the EXtreme
Funders :
CE - Commission Européenne [BE]
Available on ORBi :
since 12 October 2021

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