Premium
Dynamos from large‐scale flows versus α ‐effect
Author(s) -
Arlt R.
Publication year - 2006
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.200610561
Subject(s) - dynamo , differential rotation , rotational symmetry , physics , rotation (mathematics) , dynamo theory , scale (ratio) , stars , meridional flow , astrophysics , mechanics , zonal and meridional , magnetic field , mathematics , geometry , atmospheric sciences , quantum mechanics
The observation of certain longitudes on stars which show persistent activity requires non‐axisymmetric dynamo solutions which coexist with the typical axisymmetric, oscillatory dynamo solutions known from mean‐field α ‐dynamos. This study is an attempt of finding non‐axisymmetric solutions arising from large‐scale flows with meridional circulation and a differential rotation imitating the ones in stars. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)