Rigid and differential rotation of the solar corona

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1974 English Publisher:Springer Science and Business Media LLCJournal:Solar Physics, volume 34, pages 3-10 (issn: 0038-0938, eissn: 1573-093X,

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Authors: Ester Antonucci; Leif Svalgaard;

doi: 10.1007/bf00149592

Rigid and differential rotation of the solar corona

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Abstract

The rotation of the solar corona has been studied using recurrence properties of the green coronal line (5303 A) for the interval 1947–1970. Short-lived coronal activity is found to show the same differential rotation as short-lived photospheric magnetic field features. Long-lived recurrences show rigid rotation in the latitude interval ±57°.5. It is proposed that at least part of the variability of rotational properties of the solar atmosphere may be understood as a consequence of coexistence of differential and rigid solar rotation.

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