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Stellar dynamos – theoretical aspects
Author(s) -
Dobler W.
Publication year - 2005
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.200410386
Subject(s) - dynamo , physics , supergiant , astrophysics , stars , convection , solar dynamo , magnetic field , dynamo theory , mechanics , quantum mechanics
I review some dynamo models and constraints for stars other than the Sun. The models include mean‐field dynamo models for RS Cvn binary systems and global magnetoconvection simulations for supergiants and for fully convective stars. In the latter case, we find generation of mixed‐parity large‐scale magnetic fields once the dynamo reaches saturation. In addition to the cool, narrow downdrafts known from local simulations, these models also show a hot convective plume stretching from the centre towards the surface. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)