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Accuracy analysis and application of extrapolation of force-free fields in solar active and quiet regions

Published online by Cambridge University Press:  18 July 2013

Suo Liu ,
Hongqi Zhang ,
Jiangtao Su  and
Mutao Song
Suo Liu
Affiliation:
Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences email: lius@nao.cas.cn
Hongqi Zhang
Affiliation:
Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences email: lius@nao.cas.cn
Jiangtao Su
Affiliation:
Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences email: lius@nao.cas.cn
Mutao Song
Affiliation:
Mountain Observatory, Chinese Academy of Sciences, Nanjing, China
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Abstract

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In this paper, the availability, applicability and deviation of nonlinear force-free (NLFF) fields extrapolated by Approximate Vertical Integration (AVI), Boundary Integral Equation (BIE) and Optimization (Opt.) methods are studied based on the comparison with two semi-analytical fields (Low & Lou 1990). These NLFF extrapolations based on the observational vector magnetograms are used to study the spatial magnetic field in the quiet Sun.

Keywords

Magnetic FieldCoronaField Extrapolation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S294: Solar and Astrophysical Dynamos and Magnetic Activity , August 2012 , pp. 569 - 570
Copyright
Copyright © International Astronomical Union 2013 

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