Zirin, H. (1971) Application of the Chromospheric Magnetograph to Active Regions. In: Solar Magnetic Fields. International Astronomical Union Symposium (IAUS). No.43. Springer Netherlands , Dordrecht, pp. 237-242. ISBN 9789401031196. https://resolver.caltech.edu/CaltechAUTHORS:20201013-155619681
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Abstract
We show how to determine the magnetic field structure in active regions from the Ha morphology. We also show the role of the EFR (emerging flux region) as a bipolar region of velocity downflow. Finally, we point out that since all new magnetic flux emerges in strictly bipolar form, complex spot groups must result from surface interaction, hence most of the solar surface field may be produced on the surface.
| Item Type: | Book Section | ||||||
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| Additional Information: | © International Astronomical Union 1971. I am indebted to A. Bhatnagar and J. Adkins for magnetograms, and to Peter Foukal for numerous discussions. This work was supported by NASA and by the Atmospheric Sciences section of the NSF. | ||||||
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| Subject Keywords: | Active Region; Sunspot Group; Magnetic Field Structure; Spot Group; Magnetic Symmetry | ||||||
| Series Name: | International Astronomical Union Symposium (IAUS) | ||||||
| Issue or Number: | 43 | ||||||
| DOI: | 10.1007/978-94-010-3117-2_31 | ||||||
| Record Number: | CaltechAUTHORS:20201013-155619681 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20201013-155619681 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 106049 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | George Porter | ||||||
| Deposited On: | 14 Oct 2020 14:35 | ||||||
| Last Modified: | 16 Nov 2021 18:49 |
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