Solar rotation: The photospheric height gradient

descriptionPublicationkeyboard_double_arrow_right Article 01 Aug 1972 English Publisher:Springer Science and Business Media LLCJournal:Solar Physics, volume 25 (issn: 0038-0938, eissn: 1573-093X,

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Authors: W. Livingston; R. Milkey;

doi: 10.1007/bf00192326

Solar rotation: The photospheric height gradient

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Abstract

For selected pairs of Fraunhofer lines the height of formation has been calculated corresponding to that portion of the profile intercepted by the magnetograph exit slits. A photospheric height discrimination of 150–300 km is realized. In 1971 simultaneous measurements of equatorial angular velocity from spectroscopic displacements of these line pairs indicate no height gradient in excess of 1%.

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Kitt Peak National Observatory
United States
National Optical Astronomy Observatory
United States

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