Constraints on rotation of B-type stars from the nitrogen abundance

Jakub Ostrowski; Jadwiga Daszyńska-Daszkiewicz; Henryk Cugier

doi:10.1051/epjconf/201715206006

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 152, 06006 (2017)
https://doi.org/10.1051/epjconf/201715206006

Constraints on rotation of B-type stars from the nitrogen abundance

Jakub Ostrowski^*, Jadwiga Daszyńska-Daszkiewicz^** and Henryk Cugier^***

Instytut Astronomiczny, Uniwersytet Wroclawski, ul. Kopernika 11, 51-622 Wroclaw, Poland

^* ostrowski@astro.uni.wroc.pl
^** daszynska@astro.uni.wroc.pl
^*** cugier@astro.uni.wroc.pl

Published online: 8 September 2017

Abstract

We study the effects of rotation on surface abundances of CNO elements in massive stars. Nitrogen enrichment caused by rotationally induced mixing can help to constrain parameters of observed stars, especially their rotational velocities. Here we present theoretical results and apply them to the star HD 163899.

© The Authors, published by EDP Sciences, 2017

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.