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Modelling binary rotating stars by new population synthesis code bonnfires

Published online by Cambridge University Press:  25 February 2014

H.H.B. Lau ,
R.G. Izzard  and
F.R.N. Schneider
H.H.B. Lau
Affiliation:
Argelander-Institüt fur Astronomie, Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany
R.G. Izzard
Affiliation:
Argelander-Institüt fur Astronomie, Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany
F.R.N. Schneider
Affiliation:
Argelander-Institüt fur Astronomie, Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany
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Abstract

bonnfires, a new generation of population synthesis code, can calculate nuclear reaction, various mixing processes and binary interaction in a timely fashion. We use this new population synthesis code to study the interplay between binary mass transfer and rotation. We aim to compare theoretical models with observations, in particular the surface nitrogen abundance and rotational velocity. Preliminary results show binary interactions may explain the formation of nitrogen-rich slow rotators and nitrogen-poor fast rotators, but more work needs to be done to estimate whether the observed frequencies of those stars can be matched.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 64: Setting a New Standard in the Analysis of Binary Stars , 2013 , pp. 55 - 58
Copyright
© EAS, EDP Sciences, 2014

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