Accession Number : AD1028634


Title :   Quasi-Static Evolution, Catastrophe, and Failed Eruption of Solar Flux Ropes


Descriptive Note : Technical Report,01 Mar 2016,01 Jun 2016


Corporate Author : Naval Research Laboratory Washington United States


Personal Author(s) : Chen,James


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1028634.pdf


Report Date : 30 Dec 2016


Pagination or Media Count : 18


Abstract : This document presents the first theoretical treatment of the dynamical evolution of solar flux ropes subject to slowly increasing magnetic energy, encompassing quasi-static evolution, catastrophic transition to an eruptive state, rapid cessation of the eruption, and ensuing quasi-equilibrium evolution. The flux ropes, initialized to be force-free, self-consistently evolve into non-force-free equilibria while maintaining kink stability. In the post-eruption equilibria, tension force of the toroidal self field and the pressure gradient force combine to balance the major radial hoop force. The macroscopic forces on the flux ropes and onset conditions are quantified


Descriptors :   CORONAL MASS EJECTIONS , solar physics , pressure gradients , magnetic fields , instability , magnetic flux


Subject Categories : Astrophysics


Distribution Statement : APPROVED FOR PUBLIC RELEASE