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The velocity fields in active regions

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Abstract

From line-shift observations in two spectrum lines it is determined that the downward motions observed in plages may represent a real downward transport of material, not an apparent downward flow due to brightness or ionization differences in a multistream velocity model.

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Authors and Affiliations

  1. Hale Observatories, Carnegie Institution of Washington, California Institute of Technology, Calif., U.S.A.

    Robert Howard

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  1. Robert Howard
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Howard, R. The velocity fields in active regions. Sol Phys 24, 123–128 (1972). https://doi.org/10.1007/BF00231089

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  • DOI: https://doi.org/10.1007/BF00231089

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