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A critical test to disentangle the role of overshooting and rotation in stars

Published online by Cambridge University Press:  30 December 2019

G. Costa Open the ORCID record for G. Costa [Opens in a new window] ,
L. Girardi ,
A. Bressan ,
P. Marigo ,
Y. Chen ,
B. Kanniah ,
A. Lanza  and
T. S. Rodrigues
G. Costa
Affiliation:
SISSA, via Bonomea 365, Trieste, Italy
L. Girardi
Affiliation:
OAPD–INAF, Vicolo dell’Osservatorio 5, Padova, Italy
A. Bressan
Affiliation:
SISSA, via Bonomea 365, Trieste, Italy
P. Marigo
Affiliation:
Dipartimento di Fisica e Astronomia Galileo Galilei, Università di Padova, Italy
Y. Chen
Affiliation:
Dipartimento di Fisica e Astronomia Galileo Galilei, Università di Padova, Italy
B. Kanniah
Affiliation:
MIT, Cambridge, Massachusetts, USA
A. Lanza
Affiliation:
SISSA, via Bonomea 365, Trieste, Italy
T. S. Rodrigues
Affiliation:
OAPD–INAF, Vicolo dell’Osservatorio 5, Padova, Italy
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Abstract

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We study the mixing in low-intermediate massive stars using eclipsing binaries. We compute stellar evolutionary models with a varying convective core overshooting parameter and different rotation rates. Using a Bayesian estimation method, we found that the coexistence of the two phenomena may be a reasonable explanation of the observed extra-mixing.

Keywords

stars: evolution(stars:) binaries: eclipsing
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S343: Why Galaxies Care About AGB Stars: A Continuing Challenge through Cosmic Time , August 2018 , pp. 375 - 376
Copyright
© International Astronomical Union 2019 

References

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Rodrigues, T.S. and Bossini, D. and Miglio, A. and Girardi, L. et al. 2017, MNRAS 467, 2 Google Scholar