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Solar Open Magnetic Flux Migration Pattern over Solar Cycles

Published online by Cambridge University Press:  24 September 2020


Chia-Hsien Lin
Affiliation:
Graduate Institute of Space Science, National Central University, Taiwan email: mailto:chlin@jupiter.ss.ncu.edu.tw
Guan-Han Huang
Affiliation:
Graduate Institute of Space Science, National Central University, Taiwan email: mailto:chlin@jupiter.ss.ncu.edu.tw
Lou-Chuang Lee
Affiliation:
Institute of Earth Sciences, Academia Sinica, Taiwan
Corresponding

Abstract

The objective of this study is to investigate the solar-cycle variation of the areas of solar open magnetic flux regions at different latitudes. The data used in this study are the radial-field synoptic maps from Wilcox Solar Observatory from May 1970 to December 2014, which covers 3.5 solar cycles. Our results reveal a pole-to-pole trans-equatorial migration pattern for both inward and outward open magnetic fluxes. The pattern consists of the open flux regions migrating across the equator, the regions generated at low latitude and migrating poleward, and the regions locally generated at polar regions. The results also indicate the destruction of open flux regions during the migration from pole to equator, and at low latitude regions. The results have been published in Scientific Reports (Huang et al.2017)


Type
Contributed Papers
Copyright
© International Astronomical Union 2020

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References

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