2004/03/24 by S. Mathis, A. Palacios, J. -P. Zahn +1 · 2 citations
Physics and Astronomy · #Astro and Planetary Science #Astrophysics and Star Formation Studies #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1051/0004-6361:20040279
published as Astron.Astrophys. 425 (2004) 243-247 · 5 pages, 3 figures, accepted for publication in Astronomy and Astrophysics
arxiv created 2004/03/24 · openalex publication_date 2004/09/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
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 “β-viscosity” is drawn from torque measurements in the classical Couette-Taylor experiment (Richard & Zahn [CITE], 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.