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

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

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 r...

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Veröffentlicht in:Proceedings of the International Astronomical Union 2018-08, Vol.14 (S343), p.375-376
Hauptverfasser: Costa, G., Girardi, L., Bressan, A., Marigo, P., Chen, Y., Kanniah, B., Lanza, A., Rodrigues, T. S.
Format: Artikel
Sprache:eng
Schlagworte:
Astronomical models
Astronomy
Bayesian analysis
Binary stars
Eclipsing binary stars
Massive stars
Stellar evolution
Stellar rotation
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Zusammenfassung: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.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921318006208