Solar rotation in the chromosphere and corona |
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| Authors: | William Henze Jr A K Dupree |
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| Institution: | (1) Center for Astrophysics, Harvard College Observatory and Smithsonian Astrophysical Observatory, 02138 Cambridge, Mass., U.S.A;(2) Present address: Teledyne Brown Engineering, 35807 Research Park, Huntsville, Ala., U.S.A |
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| Abstract: | Extreme ultraviolet spectroheliograms in Mg x (625 Å) and the Lyman continuum (897 Å) obtained from OSO-6 are used to determine the differential rotation rate in the solar chromosphere and corona. The equatorial rotation rate agrees with spectroscopic measurements of the photospheric plasma velocity; the variation of rate with latitude is less pronounced than in most other determinations. We cannot discern a variation in the rotation rate between the chromosphere and corona. |
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