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Chromospheric magnetic fields associated with supergranulation

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Abstract

Some theoretical models are given which illustrate the structure of chromospheric magnetic fields associated with supergranulation. It is found that the chromospheric fields depend critically on whether or not there are large-scale vertical motions at the level where the horizontal supergranule motions are observed. In the absence of such motions, the concentration of field produced in the photosphere does not persist more than a few scale heights into the chromosphere; however, the chromospheric mass density is increased above the supergranule boundaries in this case. Completely different results-such as a chromospheric potential field-may be obtained by the inclusion of vertical motions. It is concluded that a rather wide range of chromospheric-field structures is consistent with present observational knowledge of the supergranulation.

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Authors and Affiliations

  1. Dept. of Mechanical and Aerospace Sciences, University of Rochester, Rochester, N.Y., U.S.A.

    Alfred Clark Jr.

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  1. Alfred Clark Jr.
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Clark, A. Chromospheric magnetic fields associated with supergranulation. Sol Phys 4, 386–400 (1968). https://doi.org/10.1007/BF00147904

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  • DOI: https://doi.org/10.1007/BF00147904

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