N. Gopalswamy et al 2003 ApJ 598 L63 doi:10.1086/380430
N. Gopalswamy1, A. Lara2,4, S. Yashiro2 and R. A. Howard3
Show affiliationsWe report on a close relationship between the solar polarity reversal and the cessation of high-latitude coronal mass ejections (CMEs). This result holds good for individual poles of the Sun for cycles 21 and 23, for which CME data are available. The high-latitude CMEs provide a natural explanation for the disappearance of the polar crown filaments (PCFs) that rush the poles. The PCFs, which are closed field structures, need to be removed before the poles could acquire open field structure of the opposite polarity. Inclusion of CMEs along with the photospheric and subphotospheric processes completes the full set of phenomena to be explained by any solar dynamo theory.
Sun: activity; Sun: coronal mass ejections; Sun: magnetic fields; Sun: prominences
Issue 1 (2003 November 20)
Received 2003 September 10, accepted for publication 2003 October 6
Published 2003 October 31
N. Gopalswamy et al 2003 ApJ 598 L63
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