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Magnetic-field accumulation in supergranules

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Abstract

Some theoretical models illustrating the growth of magnetic fields around the boundaries of supergranulation cells are given. The evolution of a magnetic field in a prescribed velocity field is calculated for the idealized case of hexagonal cells. The calculations are carried out both for a perfect conductor and a fluid of finite conductivity. The theory is developed in such a way as to be virtually free of specific assumptions about the depth dependence of the supergranulation flow. The results demonstrate the tendency of the field to accumulate at those boundary points where the flow is most strongly converging.

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Authors and Affiliations

  1. Dept. of Mechanical and Aerospace Sciences, University of Rochester, Rochester, N.Y., USA

    Alfred Clark Jr. & H. Kevin Johnson

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  1. Alfred Clark Jr.
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  2. H. Kevin Johnson
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Clark, A., Johnson, H.K. Magnetic-field accumulation in supergranules. Sol Phys 2, 433–440 (1967). https://doi.org/10.1007/BF00146491

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  • DOI: https://doi.org/10.1007/BF00146491

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