Convective dynamos in spherical wedge geometry
2010 (English)In: Astronomical Notes - Astronomische Nachrichten, ISSN 0004-6337, E-ISSN 1521-3994, Vol. 331, no 1, 73-81 p.Article in journal (Refereed) Published
Self-consistent convective dynamo simulations in wedge-shaped spherical shells are presented. Differential rotation is generated by the interaction of convection with rotation. Equatorward acceleration and dynamo action are obtained only for sufficiently rapid rotation. The angular velocity tends to be constant along cylinders. Oscillatory large-scale fields are found to migrate in the poleward direction. Comparison with earlier simulations in full spherical shells and Cartesian domains is made.
Place, publisher, year, edition, pages
2010. Vol. 331, no 1, 73-81 p.
Sun: magnetic fields, magnetohydrodynamics (MHD)
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:su:diva-36132DOI: 10.1002/asna.200911252ISI: 000273944200009OAI: oai:DiVA.org:su-36132DiVA: diva2:288831