Various scenarios for the equatorward migration of sunspots
Solar and Stellar Astrophysics
2020-09-30 v1
Abstract
The profile of the differential rotation together with the sign of the alpha-effect determine the dynamo wave direction. In early models of the solar dynamo the dynamo wave often leads to a poleward migration of the activity belts. Flux transport by the meridional flow or the effect of the surface shear layer are possible solutions. In a model including the corona, we show that various migrations can be obtained by varying the properties of the corona. A new dynamo of Babcock-Leighton type also leads to the correct equatorward migration by the non-linear relation between flux density and rise time of the flux.
Keywords
Cite
@article{arxiv.2003.08131,
title = {Various scenarios for the equatorward migration of sunspots},
author = {Detlef Elstner and Yori Fournier and Rainer Arlt},
journal= {arXiv preprint arXiv:2003.08131},
year = {2020}
}
Comments
4 pages, 4 figures