Kinematic Dynamos in the Kerr Metric |
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| Authors: | Núñez M |
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| Institution: | (1) Departamento de Análisis Matemático, Universidad de Valladolid, Spain. |
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| Abstract: | It is known that a sharp decrease in the angular velocity of the accretion disk around a black hole could in principle produce a kinematic axisymmetric dynamo, in contrast to the classical situation described by Cowling's antidynamo theorem. Here the effect of a nontrivial poloidal velocity of the disk is studied, showing that a strong gradient of this velocity enhances the possibilities of a working dynamo. |
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| Keywords: | Black hole Accretion disk Axisymmetry |
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