On shear-induced turbulence in rotating stars - Archive ouverte HAL Access content directly
Journal Articles Astronomy and Astrophysics - A&A Year : 2004

On shear-induced turbulence in rotating stars


We review various prescriptions which have been proposed for the turbulent transport of matter and angular momentum in differentially rotating stellar radiation zones. A new prescription is presented for the horizontal transport associated with the anisotropic shear turbulence which is produced by the differential rotation in latitude; this ``beta-viscosity'' is drawn from torque measurements in the classical Couette-Taylor experiment (Richard & Zahn \cite{Richard99}, A&A, 347, 734). Its implementation in a stellar evolution code leads to enhanced mixing, as illustrated by models of a rotating main-sequence star of 1.5 solar mass.
Fichier principal
Vignette du fichier
aa0279-04.pdf (160.04 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-03742211 , version 1 (22-09-2022)



Stéphane Mathis, A. Palacios, Jean-Paul Zahn. On shear-induced turbulence in rotating stars. Astronomy and Astrophysics - A&A, 2004, 425, pp.243-247. ⟨10.1051/0004-6361:20040279⟩. ⟨hal-03742211⟩
6 View
1 Download



Gmail Facebook Twitter LinkedIn More