The differential rotation of the solar corona has been analyzed using as the input data the brightness of the coronal green line Fe XIV 530.3 nm for more than five activity cycles. It is found that the character of rotation of the solar corona changes during the activity cycle. Approximately at the
Rigid and differential rotation of the solar corona
β Scribed by Ester Antonucci; Leif Svalgaard
- Publisher
- Springer
- Year
- 1974
- Tongue
- English
- Weight
- 423 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0038-0938
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β¦ Synopsis
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 i 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. * On leave from Torino University, Italy, as an ESRO-NASA Fellow.
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