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Convective dynamos in spherical wedge geometry
Stockholm University, Faculty of Science, Department of Astronomy. Stockholm University, Nordic Institute for Theoretical Physics (Nordita).
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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
Abstract [en]

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.
Keyword [en]
Sun: magnetic fields, magnetohydrodynamics (MHD)
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:su:diva-36132DOI: 10.1002/asna.200911252ISI: 000273944200009OAI: diva2:288831
Available from: 2010-01-22 Created: 2010-01-22 Last updated: 2016-07-01Bibliographically approved

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Brandenburg, Axel
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Department of AstronomyNordic Institute for Theoretical Physics (Nordita)
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Astronomical Notes - Astronomische Nachrichten
Astronomy, Astrophysics and Cosmology

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