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Studying solar-cycle variation of open magnetic flux regions using coronal holes

Published online by Cambridge University Press:  27 November 2018

Chia-Hsien Lin Open the ORCID record for Chia-Hsien Lin [Opens in a new window] ,
Guan-Han Huang  and
Lou-Chuang Lee
Chia-Hsien Lin
Affiliation:
Graduate Institute of Space Science, National Central University, Taiwan email: chlin@jupiter.ss.ncu.edu.tw
Guan-Han Huang
Affiliation:
Graduate Institute of Space Science, National Central University, Taiwan email: chlin@jupiter.ss.ncu.edu.tw
Lou-Chuang Lee
Affiliation:
Institute of Earth Sciences, Academia Sinica, Taiwan email: louclee@earth.sinica.edu.tw
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Abstract

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The process of the magnetic polarity reversal of the Sun has been an important subject in the solar physics. The objective of this study is to investigate how solar global magnetic field change over solar cycle by tracking the migration of open magnetic flux regions. The results show that the open magnetic fluxes migrate from one pole to the other crossing the equator during a solar cycle. The migration rate is approximately 10 m s−1, comparable to meridional flow. The results have been published in Scientific Reports (Huang et al. (2017)).

Keywords

Sun: magnetic fieldsSun: solar windSun: activitySun: corona
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. 63 - 64
Copyright
Copyright © International Astronomical Union 2018 

References

Huang, G.-H., Lin, C.-H., & Lee, L. C., 2017, Scientific Reports, 7, 9488Google Scholar
Obridko, V. N. & Shelting, B. D., 1999, Solar Physics, 187, 185Google Scholar
Schatten, K. H., Wilcox, M. M., & Ness, N. F., 1969, Solar Physics, 6, 442Google Scholar