Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-14T10:16:58.600Z Has data issue: false hasContentIssue false
  • English
  • Français

Surface convection in Population II stars

Published online by Cambridge University Press:  01 April 2008

Laurent Piau  and
Robert F. Stein
Laurent Piau
Affiliation:
CEA-Saclay DSM/IRFU/SAp, L'Orme des Merisiers 91191 Gif-sur-YvetteFrance
Robert F. Stein
Affiliation:
Michigan State University, Department of Physics & Astronomy East Lansing, MI 48824-2320, USA
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The initial surface abundances of Population II stars have been altered by the interplay between convection, rotational mixing and diffusion. In particular the shallower the outer convection zone the stronger the diffusion impact. We present preliminary results on constraining the extension of the convection zones of Population II stars thanks to 3D hydrodynamical simulations.

Keywords

Convectionstars: populations II
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S252: The Art of Modeling Stars in the 21st Century , April 2008 , pp. 253 - 254
Copyright
Copyright © International Astronomical Union 2008

References

Ludwig, H.-G., Allard, F., & Hauschildt, P. H., 2006, A&A, 459, 599Google Scholar
Ludwig, H.-G., Allard, F., & Hauschildt, P. H., 2002, A&A, 395, 99Google Scholar
Morel, P., 1997, A&AS, 124, 597Google Scholar
Nordlund, A, 1982, A&A, 107, 1.Google Scholar
Stein, R. F. & Nordlund, A, 1998, ApJ, 499, 914 Ferguson J. W., 2006, ApJ, 653, 300 Chan K. L., Guenther D. B., 2003, MNRAS, 340, 923 Franois P., Bonifacio P., Barbuy B., Beers T., and 4 coauthors, 2005, A&A, 430, 655Google Scholar