Astronomy and Astrophysics – Astronomy
Scientific paper
May 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997acasn..38..167l&link_type=abstract
Acta Astronomica Sinica, vol. 38, p. 167
Astronomy and Astrophysics
Astronomy
1
Solar Magnetic Field, Solar Activity, Sunspots, Magnetic Islands, Lines Of Force, Magnetic Field Configurations, Solar Flares, Topology
Scientific paper
The superactive region NOAA 6891 is an 'island' delta-sunspot. There are five magnetic inversion lines in it. Across the 2nd and 3rd inversion lines there are highly sheared field configurations, and at these two places a lot of flares occurred. Especially near the 2nd inversion line, two white-light flares were produced. Magnetic inversion lines have different characteristics. This is due to their different magnetic circumstances. So we should study three-dimensional magnetic fields, and this is a useful way to study the magnetic topology separatrices.
Hu Fu-Ming
Li Bi-Qiang
Song Mo-Tao
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