Raphael Hirschi r.hirschi@keele.ac.uk
Linking 1D evolutionary to 3D hydrodynamical simulations of massive stars
Hirschi
Authors
Abstract
In this contribution we present initial results of a study on convective boundary mixing (CBM) in massive stellar models using the GENEVA stellar evolution code (Eggenberger et al.2008). Before undertaking costly 3D hydrodynamic simulations, it is important to study the general properties of convective boundaries, such as the: composition jump; pressure gradient; and “stiffness”. Models for a 15M? star were computed. We found that for convective shells above the core, the lower (in radius or mass) boundaries are “stiffer” according to the bulk Richardson number than the relative upper (Schwarzschild) boundaries. Thus, we expect reduced CBM at the lower boundaries in comparison to the upper. This has implications on flame front propagation and the onset of novae.
Citation
Hirschi. (2016). Linking 1D evolutionary to 3D hydrodynamical simulations of massive stars. Physica Scripta, 98-99. https://doi.org/10.1017/S1743921314006371
Acceptance Date | Oct 28, 2014 |
---|---|
Publication Date | Mar 23, 2016 |
Journal | Physica Scripta |
Print ISSN | 0031-8949 |
Publisher | IOP Publishing |
Pages | 98-99 |
DOI | https://doi.org/10.1017/S1743921314006371 |
Keywords | convection; hydrodynamics; stellar dynamics; turbulence; stars: evolution;stars: interiors |
Publisher URL | https://doi.org/10.1017/S1743921314006371 |
You might also like
Turbulence and nuclear reactions in 3D hydrodynamics simulations of massive stars
(2023)
Journal Article
Very massive star winds as sources of the short-lived radioactive isotope Al-26
(2022)
Journal Article
Very massive star winds as sources of the short-lived radioactive isotope 26Al
(2022)
Journal Article
Downloadable Citations
About Keele Repository
Administrator e-mail: research.openaccess@keele.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search