2009/02/07 by Durgesh Tripathi, D. Tripathi, S. E. Gibson +8 · 5 citations
Physics and Astronomy · #Astronomy #Astrophysics #Coronal mass ejection #Flux (metallurgy) #Gamma-ray bursts and supernovae #Ionosphere and magnetosphere dynamics #Magnetic field #Observable #Observatory #Physics #Plasma #Solar and Space Plasma Dynamics #Solar prominence #Solar telescope #Telescope #astro-ph.SR
paper · pdf · doi:10.1051/0004-6361/200809801
13 pages, 11 figures
arxiv created 2009/02/07 · openalex publication_date 2009/03/05 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
<i>Aims. <i/>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).<i>Methods. <i/>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.<i>Results. <i/>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.<i>Conclusions. <i/>The PEFR model provides a plausible mechanism to explain the observed evolution of partially-erupting-prominence-associated CMEs in our study.