Posteruptive phenomena in coronal mass ejections and substorms: Indicators of a universal process?
We examine phenomena associated with eruptions in the two different regimes of the solar corona and the terrestrial magnetosphere. We find striking similarities between the speeds of shrinking magnetic field lines in the corona and dipolarization fronts traversing the magnetosphere. We also examine the similarities between supra-arcade downflows observed during solar flares and bursty bulk flows seen in the magnetotail and find that these phenomena have remarkably similar speeds, velocity profiles, and size scales. Thus we show manifest similarities in the magnetic reconfiguration in response to the ejection of coronal mass ejections in the corona and the ejection of plasmoids in the magnetotail. The subsequent return of loops to a quasi-potential state in the corona and field dipolarization in the magnetotail are physical analogs and trigger similar phenomena such as downflows, which provides key insights into the underlying drivers of the plasma dynamics.
document
https://n2t.org/ark:/85065/d7b56jxz
eng
geoscientificInformation
Text
publication
2016-01-01T00:00:00Z
publication
2008-07-09T00:00:00Z
An edited version of this paper was published by AGU. Copyright 2008 American Geophysical Union.
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