Skip to main content

Research Repository

Advanced Search

Dynamical shear instability

Hirschi, Raphael; Maeder, Andre; Meynet, Georges

Authors

Andre Maeder

Georges Meynet



Abstract

The dynamical shear instability is an important mixing process in the advanced stages of the evolution of massive stars. We calculated different models of 15 Mo with an initial rotational velocity, v(rot,ini)= 300 km/s to investigate its efficiency. We found that the dynamical shear instability has a timescale shorter than Oxygen burning timescale and that it slightly enlarges the convective zones and smoothens the omega gradients throughout the evolution.
However, its effect is too localized to slow down the core of the star.

Citation

Hirschi, R., Maeder, A., & Meynet, G. (2004). Dynamical shear instability. Proceedings of the International Astronomical Union, 215, 510 - 511

Journal Article Type Conference Paper
Online Publication Date May 26, 2016
Publication Date 2004
Deposit Date Jul 7, 2023
Publicly Available Date Jul 7, 2023
Journal Symposium - International Astronomical Union
Print ISSN 1743-9213
Electronic ISSN 0074-1809
Publisher Cambridge University Press
Peer Reviewed Not Peer Reviewed
Volume 215
Pages 510 - 511
Keywords Astrophysics