The reduction of the solar velocity field into its oscillatory and slowly-varying components |
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| Authors: | N R Sheeley Jr A Bhatnagar |
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| Institution: | (1) Kitt Peak National Observatory, Tucson, Ariz., U.S.A.;(2) Big Bear Solar Observatory, Hale Observatories, California Institute of Technology, Carnegie Institute of Washington, Pasadena, Calif., U.S.A. |
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| Abstract: | Spectroheliogram movies of the solar velocity field have been made in the  4924 line of Feii with a time resolution of 20 sec/frame and a spatial resolution in the range 1–2 sec of arc. A conventional doppler movie has been used to generate two additional movies which show the slowly-varying and oscillatory components of the velocity field separately. A basic result is the simplicity of the field patterns into which the relatively complex velocity field can be decomposed.Operated by the Association of Universities for Research in Astronomy, Inc., under contract to the National Science Foundation.Visiting Astronomer, Solar Division. |
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