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《中国天文和天体物理学报(英文版)》 2003-01
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The Kinematic Theory of Solar Dynamo

Ke-Ke Zhang and Xin-Hao LiaoSchool of Mathematical Sciences, University of Exeter, EX4 4QE, UK; kzhang@ex.ac.ukShanghai Astronomical Observatory, Shanghai 200030; xhliao@center.shao.ac.cn  
Generation of the Sun's magnetic fields by self-inductive processes in the solar electrically conducting interior, the solar dynamo theory, is a fundamentally important subject in astrophysics. The kinematic dynamo theory concerns how the magnetic fields are produced by kinematically possible flows without being constrained by the dynamic equation. We review a number of basic aspects of the kinematic dynamo theory, including the magnetohydrodynamic approximation for the dynamo equation, the impossibility of dynamo action with the solar differential rotation, the Cowling's anti-dynamo theorem in the solar context, the turbulent alpha effect and recently constructed three-dimensional interface dynamos controlled by the solar tachocline at the base of the convection zone.
【Fund】: Supported by the National Natural Science Foundation of China and UK Royal Society grant.
【CateGory Index】: P182
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