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Coronal mass ejections detected in solar mean magnetic field
Author(s) -
Boberg Fredrik,
Lundstedt Henrik
Publication year - 2000
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2000gl000088
Subject(s) - coronal mass ejection , physics , wavelet , coronal plane , astrophysics , solar flare , magnetic field , astronomy , solar wind , medicine , quantum mechanics , artificial intelligence , computer science , radiology
One minute resolution solar mean magnetic field sequences during 74 coronal mass ejection events are analyzed using wavelet transforms. A significant fraction of the resulting wavelet power spectra shows a characteristic peak at the time of the coronal mass ejection. With an average period of 13 minutes, the signature in the solar mean field is most likely the result of global waves trigged by the departing CME.