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Revisiting the Hunter diagram with the Geneva Stellar Evolution Code

Published online by Cambridge University Press:  23 January 2015

R. Simoniello ,
G. Meynet ,
S. Ekström ,
C. Georgy  and
A. Granada
R. Simoniello
Affiliation:
Laboratoire AIM, CEA/DSM-CNRS-Université Paris Diderot; CEA, IRFU, SAp, centre de Saclay, F-91191, Gif-sur-Yvette, France email: [email protected]
G. Meynet
Affiliation:
Geneva Observatory, Chemin de Maillettes 51, 1290 Sauverny, Switzerland
S. Ekström
Affiliation:
Geneva Observatory, Chemin de Maillettes 51, 1290 Sauverny, Switzerland
C. Georgy
Affiliation:
Astrophysics group, Lennard-Jones Laboratories, EPSAM, Keele University, Staffordshire ST5 5BG, UK
A. Granada
Affiliation:
Geneva Observatory, Chemin de Maillettes 51, 1290 Sauverny, Switzerland
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Abstract

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We produced a model grid of rotating main and post-main sequence stars with the Geneva Stellar Evolution Code (GENEC). The initial chemical composition is tailored to compare with observations of early OB type stars in the Large Magellanic Cloud (LMC) and the grid covers stellar masses in the range of 7 ≤ M/M⊙ ≤ 15 and initial velocity between 0 km s−1 ≤ v sin(i) ≤ 300 km s−1. The model grid has been used to determine the changes in the surface Nitrogen abundances during the star evolution and the results have been compared with observations.

Keywords

methods: numericalstars: rotationstars: abundances
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Issue S307: New windows on massive stars: asteroseismology, interferometry, and spectropolarimetry , June 2014 , pp. 142 - 143
Copyright
Copyright © International Astronomical Union 2015 

References

Eggenberger, P., Meynet, G., Maeder, A., et al. 2008, APSS 316, 43Google Scholar
Georgy, C., Granada, A., Ekström, S., et al. 2014, A&A 566, A21Google Scholar
Hunter, I., Brott, I., Lennon, D. J., et al. 2008, ApJL 676, L29CrossRefGoogle Scholar