151 citations · 1.1k across the 33 of their papers we have counts for
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Space Weather Application Using Projected Velocity Asymmetry of Halo CMEs
G. Michalek, N. Gopalswamy, S. Yashiro
Halo coronal mass ejections (HCMEs) originating from regions close to the center of the Sun are likely to be responsible for severe geomagnetic storms. It is important to predict g…
An Asymmetric Cone Model for Halo Coronal Mass Ejections
G. Michalek
Due to projection effects, coronagraphic observations cannot uniquely determine parameters relevant to the geoeffectiveness of CMEs, such as the true propagation speed, width, or s…
Geoeffectiveness of halo CMEs
G. Michalek, N. Gopalswamy, A. Lara +1
Halo coronal mass ejections (HCMEs) originating from regions close to the center of the Sun are likely to be geoeffective. Assuming that the shape of HCMEs is a cone and they propa…
A new possibility to estimate the width, source location and velocity of halo CMEs
G. Michalek, N. Gopalswamy, S. Yashiro
It is well know that the coronagraphic observations of halo CMEs are subject to projection effects. Viewing in the plane of the sky does not allow us to determine the crucial param…
Width of Radio-Loud and Radio-Quiet CMEs
G. Michalek, N. Gopalswamy, H. Xie
In the present paper we report on the difference in angular sizes between radio-loud and radio-quiet CMEs. For this purpose we compiled these two samples of events using Wind/WAVES…
Prediction Space Weather Using an Asymmetric Cone Model for Halo CMEs
G. Michalek, N. Gopalswamy, S. Yashiro
Halo coronal mass ejections (HCMEs) are responsible of the most severe geomagnetic storms. A prediction of their geoeffectiveness and travel time to Earth's vicinity is crucial to…