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Observational Characteristics of CMEs without Low Coronal Signatures View all abstracts by submitter

Elke D'Huys   Submitted: 2014-09-05 03:13

Solar eruptions are usually associated with a variety of phenomena occurring in the low corona before, during, and after onset of eruption. Though easily visible in coronagraph observations, so-called stealth coronal mass ejections (CMEs) do not obviously exhibit any of these low-coronal signatures. The presence or absence of distinct low coronal signatures can be linked to different theoretical models to establish the mechanisms by which the eruption is initiated and driven. In this study, 40 CMEs without low coronal signatures, occurring in 2012, are identified. Their observational and kinematic properties are analyzed and compared to those of regular CMEs. Solar eruptions without clear on-disk or low coronal signatures can lead to unexpected space weather impacts, since many early warning signs for significant space weather activity are not present in these events. A better understanding of their initiation mechanism(s) will considerably improve the ability to predict such space weather events.

Authors: E. D'Huys, D.B. Seaton, S. Poedts, D. Berghmans
Projects: None

Publication Status: Accepted to ApJ
Last Modified: 2014-09-05 10:14
Go to main E-Print page  Formation of Compound Flux Rope by The Merging of Two Filament Channels, Associated Dynamics and its Stability  Simultaneous Transverse Oscillations of a Prominence and a Filament and  Longitudinal Oscillation of another Filament Induced by a Single Shock Wave  Edit Entry  Download Preprint  Delete Entry 

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