The Babcock - Leighton solar dynamo
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05.10.2015
Co-author
R.H. Cameron
Affiliation
MPI for Solar System Research, Göttingen, Germany
Main category
Natural Sciences (Astrophysics and Astrononmy)
Abstract
Hale’s polarity laws for sunspot groups, the helioseismic determination of differential rotation in the convection zone, and the success of surface flux transport models in reproducing the observed evolution of large-scale solar surface fields, together with a simple mathematical argument, yield compelling evidence that the large-scale solar dynamo operates according to the scenario originally envisaged by H.W. Babcock and R. Leighton in the 1960s. The polar fields represent THE poloidal flux from which the toroidal flux emerging in sunspot groups is wound up by (mainly latitudinal) differential rotation. The polar fields themselves result from tilted sunspot groups while small-scale magnetic features ("turbulence") do not provide a significant contribution.
Further information
Further reading
R.H. Cameron and M. Schüssler, Science, 347, 1333 (2015)
Language
DOI
Conference
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