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On the Inference of Magnetic Field Vectors from Stokes Profiles: A Generalization of the Weak-Field Approximation

Published online by Cambridge University Press:  12 April 2016

Zhong-Quan Qu ,
You-Ji Ding ,
Jia-Yu Xuan  and
Shi-Hui Ye
Zhong-Quan Qu
Affiliation:
Yunnan Observatory, Kunming 650011, China
You-Ji Ding
Affiliation:
Yunnan Observatory, Kunming 650011, China
Jia-Yu Xuan
Affiliation:
Yunnan Observatory, Kunming 650011, China
Shi-Hui Ye
Affiliation:
Yunnan Observatory, Kunming 650011, China

Abstract

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A generalization of Jefferies et al’s weak-field approximation for the inference of the strength and polar angle of magnetic field vectors from Stokes profiles is obtained while the inference of azimuthal angle follows a relationship derived by Landi Degl’Innocenti’s perturbative solutions to the transfer equations in which the magneto-optical effect is taken account. It is found that the weak-field condition (ΔλH / ΔλD ≤1) is not necessary for the new method when the fitting is done in the line wings.

Type
Session 2. Theory of Active Region Structure
Information
International Astronomical Union Colloquium , Volume 141: The Magnetic and Velocity Fields of Solar Active Regions , 1993 , pp. 130 - 133
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

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