Parity fluctuations in stellar dynamos
- Authors: Moss D.L.1, Sokoloff D.D.2,3
- 
							Affiliations: 
							- School of Mathematics
- Institute of Continuous Mechanical Media, Ural Branch
- Moscow State University
 
- Issue: Vol 61, No 10 (2017)
- Pages: 878-882
- Section: Article
- URL: https://journals.rcsi.science/1063-7729/article/view/191110
- DOI: https://doi.org/10.1134/S1063772917100079
- ID: 191110
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Abstract
Observations of the solar butterfly diagram from sunspot records suggest persistent fluctuations in parity, away from the overall, approximately dipolar pattern. A simple mean-field dynamo model is used with a solar-like rotation law and perturbed α effect. The parity of the magnetic field relative to the rotational equator can demonstrate can be described as resonance behavior, while the magnetic energy behaves in a more or less expected way. Possible applications of this effect are discussed in the context of various deviations of the solar magnetic field from dipolar symmetry, as reported from analyses of archival sunspot data. The model produces fluctuations in field parity, and hence in the butterfly diagram, that are consistent with observed fluctuaions in solar behavior.
About the authors
D. L. Moss
School of Mathematics
														Email: sokoloff.dd@gmail.com
				                					                																			                												                	United Kingdom, 							Manchester						
D. D. Sokoloff
Institute of Continuous Mechanical Media, Ural Branch; Moscow State University
							Author for correspondence.
							Email: sokoloff.dd@gmail.com
				                					                																			                												                	Russian Federation, 							Perm; Moscow						
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