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Kinematic and magnetic coherent structures in solar and stellar turbulence

Published online by Cambridge University Press:  27 November 2018

Abraham C.-L. Chian ,
Rodrigo A. Miranda Open the ORCID record for Rodrigo A. Miranda [Opens in a new window] ,
Erico L. Rempel  and
Brigitte Schmieder
Abraham C.-L. Chian
Affiliation:
University of Adelaide, School of Mathematical Sciences, Adelaide SA 5005, Australia. email: [email protected] National Institute for Space Research (INPE), São José dos Campos SP 12227-010, Brazil.
Rodrigo A. Miranda
Affiliation:
UnB-Gama Campus, University of Brasília (UnB), Brasília DF 70910-900, Brazil. Plasma Physics Laboratory, Institute of Physics, University of Brasília (UnB), Brasília DF 70910-900, Brazil.
Erico L. Rempel
Affiliation:
National Institute for Space Research (INPE), São José dos Campos SP 12227-010, Brazil. Institute of Aeronautical Technology (ITA), São José dos Campos SP 12228-900, Brazil.
Brigitte Schmieder
Affiliation:
Observatoire de Paris, LESIA, 5 place Janssen, 92195 Meudon, France.
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Abstract

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We show that on-off intermittency in solar and stellar cycles is a result of amplitude-phase synchronization in multiscale interactions in solar/stellar dynamos or magnetorotational instability which leads to the formation of kinematic and magnetic coherent structures, and the novel techniques of Lagrangian coherent structures can detect transport barriers and vortices such as magnetic flux tubes/ropes in solar and stellar turbulence with high accuracy.

Keywords

turbulenceSun: coronadynamophotospheresunspot cycle
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S340: Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles , February 2018 , pp. 285 - 288
Copyright
Copyright © International Astronomical Union 2018 

References

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