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The Reversed Polarity Structures of Chromospheric Magnetic Fields in Active Regions

Published online by Cambridge University Press:  12 April 2016

Wei Li ,
Guoxiang Ai ,
Hongqi Zhang  and
Jimin Chen
Wei Li
Affiliation:
Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China
Guoxiang Ai
Affiliation:
Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China
Hongqi Zhang
Affiliation:
Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China
Jimin Chen
Affiliation:
Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China

Abstract

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The reversed polarity structures of chromospheric magnetic fields are magnetic gulfs and islands of opposite polarity relative to the underlying photospheric fields. In this paper data were analyzed from the Solar Magnetic Field Telescope of the Huairou Solar Observing Station (HSOS) in Beijing. From more than 300 pairs of photospheric magnetograms (in FeI λ5324.19 Å) and relevant chromospheric magnetograms (in Hβλ4861.34 Å), the reality of the reversed polarity structures is demonstrated. According to an analysis of the fine structures of the magnetic fields in the two layers of active regions, we found that there are probably four different types.

Type
Session 5. Fields in the Chromosphere and Corona
Information
International Astronomical Union Colloquium , Volume 141: The Magnetic and Velocity Fields of Solar Active Regions , 1993 , pp. 299 - 301
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

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