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The Most Important Origin of Twist and Tilt of Magnetic Fields in Solar Active Regions

Published online by Cambridge University Press:  13 May 2016

L. Tian ,
H. Zhang  and
S. Bao
L. Tian
Affiliation:
Beijing Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, A20 Datun Road, Chaoyang District, Beijing 100012, China
H. Zhang
Affiliation:
Beijing Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
S. Bao
Affiliation:
Beijing Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China

Abstract

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In this paper, we show observed properties of tilt and twist of bipolar active regions magnetic fields, using magnetograph data at Huairou, Beijing Astronomical Observatory. We deduce that origin of the twist of magnetic fields is same as that of tilt of bipolar magnetic fields. In another word, they are primarily produced by Coriolis force acting on a rising flux tube through convection zone.

Type
Session III: Active Region Structure and Dynamics
Information
Symposium - International Astronomical Union , Volume 203: Recent Insights into the Physics of the Sun and Heliosphere: Highlights from Soho and Other Space Missions , 2001 , pp. 324 - 327
Copyright
Copyright © Astronomical Society of the Pacific 2001 

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