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The Emerging Features of Bipolar Magnetic Regions during Solar Minima
DOI: 10.1086/521141
Bibcode: 2007ApJ...667.1258S
Feng, Xueshang; Song, Wenbin
Solar magnetic synoptic charts obtained by NSO/Kitt Peak and SOHO/MDI are analyzed in order to study the appearance of bipolar magnetic regions (BMRs) during solar minima. We find that the emergence of long-lived BMRs have three typical features. (1) The emergence rate of BMRs in the new cycle increases about 3 times faster than the rate of the ol…
2007
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The Astrophysical Journal
SOHO
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