Hostname: page-component-7bb8b95d7b-nptnm Total loading time: 0 Render date: 2024-09-20T08:16:44.386Z Has data issue: false hasContentIssue false
  • English
  • Français

Turbulent transport in stellar radiative zones

Published online by Cambridge University Press:  13 January 2006

G. Alecian ,
O. Richard ,
S. Vauclair ,
F. Lignières ,
N. Toqué  and
A. Vincent
F. Lignières
Affiliation:
Laboratoire d'Astrophysique de Toulouse et Tarbes, Observatoire Midi-Pyrénées, 14 avenue É. Belin, 31400 Toulouse, France
N. Toqué
Affiliation:
Laboratoire d'Astrophysique de Toulouse et Tarbes, Observatoire Midi-Pyrénées, 14 avenue É. Belin, 31400 Toulouse, France
A. Vincent
Affiliation:
Département de Physique, Université de Montréal, CP. 6128, Succ. A, Montréal, Québec H3C 3J7, Canada
Get access

Abstract

Abundances anomalies and helioseismology provide constraints on the turbulent transport of chemical species in stellar radiative zone. We use these constraints to derive upper bounds on the velocity and lengthscale of the vertical turbulent motions. We also present numerical simulations showing that a strong anisotropy between horizontal and vertical motions could help understand the observed transport.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 17: Element Stratification in Stars: 40 Years of Atomic Diffusion , 2005 , pp. 209 - 214
Copyright
© EAS, EDP Sciences, 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)