The Reversed Polarity Structures of Chromospheric Magnetic Fields in Active Regions

Wei Li, Guoxiang Ai, Hongqi Zhang, Jimin Chen
1993 International Astronomical Union Colloquium  
AbstractThe 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 FeIλ5324.19 Å) and relevant chromospheric magnetograms (in Hβλ4861.34 Å), the reality of the reversed polarity structures is
more » ... . 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.
doi:10.1017/s0252921100029286 fatcat:wjad3dkdbvfn5ivkoy45l7qlxe