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Advection‐dominated Solar Dynamo Model with Two‐cell Meridional Flow and a Positive α ‐Effect in the Tachocline by A. Bonanno; D. Elstner; G. Belvedere is a Physics and Astronomy article available to read on EtoBox.
What is Advection‐dominated Solar Dynamo Model with Two‐cell Meridional Flow and a Positive α ‐Effect in the Tachocline about?
## Abstract Most probably the sunspot cycle period is ruled by a meridional flow located near the base of the convection zone (Hathaway et al. 2003). On the other hand, if the eddy diffusivity is low enough, dramatic modification of the standard __α__ ^2^__Ω__ ‐dynamo by the meridional flow are expected. In this paper we shall discuss the dependence of periods, dynamo numbers and the sign of the current helicity as a function of the magnetic Reynolds number for a double cell meridional circulation and for a __positive α__ ‐effect at the base of the convection zone. The dynamo action occurs at lower latitudes and its location is at the interface between equatorward and poleward motions near the base of the convection zone. In spite of the complexity of the flow pattern, our simulations show that the resulting dynamo action reproduces several observed features of the solar cycle. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Who reads Advection‐dominated Solar Dynamo Model with Two‐cell Meridional Flow and a Positive α ‐Effect in the Tachocline?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- A. Bonanno; D. Elstner; G. Belvedere
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 0004-6337)
- Published
- 2006
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)