Initial fluxon models of CME onset: loss-of-equilibrium, breakout, tether-cutting

Details Initial fluxon models of CME onset: loss-of-equilibrium, breakout, tether-cutting Initial fluxon models of CME onset: loss-of-equilibrium, breakout, tether-cutting

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsh13a0277d&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #SH13A-0277

Physics

2753 Numerical Modeling, 7509 Corona, 7513 Coronal Mass Ejections (2101), 7594 Instruments And Techniques, 9820 Techniques Applicable In Three Or More Fields

Scientific paper

I will present results from initial models of CME onset using a new force-free magnetic evolution code, FLUX, that uses the novel fluxon approach to MHD modeling. FLUX is a quasi-Lagrangian solver that is free of numerical reconnection and that I am making available as free software. It is currently suitable for studying evolving force-free equilibria in the presence of only controlled reconnection; development work is ongoing to add plasma static and dynamic forces. I plan to consider three simple configurations typical of three current genres of CME onset model: loss of equilibrium under smooth motion by the photosphere; "tether-cutting" (reconnection of a containment field underneath a twisted prominence field); and "breakout" (reconnection of a containment field above a twisted prominence field). In each case I will estimate the magnetic energy available to accelerate mass, and discuss the resulting shape of the remnant open field regions ("dimming regions") after liftoff.

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