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Flux emergence rate of active regions as a probe for turbulent dynamo action

Published online by Cambridge University Press:  27 November 2018

Aleksandr S. Kutsenko  and
Valentina I. Abramenko
Aleksandr S. Kutsenko
Affiliation:
Crimean Astrophysical Observatory, p/o Nauchny, Crimea, 298409, Russia email: alex.s.kutsenko@gmail.com
Valentina I. Abramenko
Affiliation:
Crimean Astrophysical Observatory, p/o Nauchny, Crimea, 298409, Russia email: alex.s.kutsenko@gmail.com
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Abstract

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We analyze the flux emergence rate of solar active regions (ARs). Numerical simulations by other authors suggest that the flux emergence rate depends on the AR’s twist. To prove this statement observationally, we make a comparison of the flux emergence rate and twist of 215 emerging ARs. Our results confirm that the correlation exists: the higher the twist the higher the flux emergence rate of an AR. We suppose that the difference in the twist can be caused by chaotic influence of the convective plasma motions on the lifting magnetic flux tube.

Keywords

Sun: magnetic fields(Sun:) sunspotsSun: photosphereSun: interior
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. 299 - 300
Copyright
Copyright © International Astronomical Union 2018 

References

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