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Partially-erupting prominences: A comparison between observations and model-predicted observables

AMS Citation:
Tripathi, D., S. E. Gibson, J. Qiu, L. Fletcher, R. Liu, H. Gilbert, and H. E. Mason, 2009: Partially-erupting prominences: A comparison between observations and model-predicted observables. Astronomy and Astrophysics, 498, 295-305, doi:10.1051/0004-6361/200809801.
Date:2009-04-01
Resource Type:article
Title:Partially-erupting prominences: A comparison between observations and model-predicted observables
Abstract: Aims. We investigate several partially-erupting prominences to study their relationship with other CME-associated phenomena and compare these observations with observables predicted by a model of partially-expelled-flux-ropes (Gibson & Fan 2006a, ApJ, 637, L65; 2006b, J. Geophys. Res., 111, 12103). Methods. We studied 6 selected events with partially-erupting prominences using multi-wavelength observations recorded by the Extreme-ultraviolet Imaging Telescope (EIT), Transition Region and Coronal Explorer (TRACE), Mauna Loa Solar Observatory (MLSO), Big Bear Solar Observatory (BBSO), and Soft X-ray Telescope (SXT). The observational features associated with partially-erupting prominences were then compared with the predicted observables from the model. Results. The partially-expelled-flux-rope (PEFR) model can explain the partial eruption of these prominences, and in addition predicts a variety of other CME-related observables that provide evidence of internal reconnection during eruption. We find that all of the partially-erupting prominences studied in this paper exhibit indirect evidence of internal reconnection. Moreover, all cases showed evidence of at least one observable unique to the PEFR model, e.g., dimmings external to the source region and/or a soft X-ray cusp overlying a reformed sigmoid. Conclusions. The PEFR model provides a plausible mechanism to explain the observed evolution of partially-erupting-prominence-associated CMEs in our study.
Subject(s):Sun: Corona, Sun: Coronal mass ejections (CMEs), Sun: Filaments
Peer Review:Refereed
Copyright Information:An edited version of this paper was published by EDP Sciences. Copyright 2009 European Southern Observatory.
OpenSky citable URL: ark:/85065/d7q52qps
Publisher's Version: 10.1051/0004-6361/200809801
Author(s):
  • D. Tripathi
  • Sarah Gibson - NCAR/UCAR
  • J. Qiu
  • L. Fletcher
  • R. Liu
  • H. Gilbert
  • H. Mason
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