Simulation of the Observed Coronal Kink Instability and Its Implications for the SDO/AIA
arXiv:1301.2927 · doi:10.1016/j.asr.2013.02.003
Abstract
Srivastava et al. (2010) have observed a highly twisted coronal loop, which was anchored in AR10960 during the period 04:43 UT-04:52 UT on 4 June 2007. The loop length and radius are approximately 80 Mm and 4 Mm, with a twist of 11.5 . These observations are used as initial conditions in a three dimensional nonlinear magnetohydrodynamic simulation with parallel thermal conduction included. The initial unstable equilibrium evolves into the kink instability, from which synthetic observables are generated for various high-temperature filters of SDO/AIA. These observables include temporal and spatial averaging to account for the resolution and exposure times of SDO/AIA images. Using the simulation results, we describe the implications of coronal kink instability as observables in SDO/AIA filters.
12 Pages, 6 Figures
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- Torus instability
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Cited by in corpus (4)
- Origin of Macrospicule and Jet in Polar Corona by A Small-scale Kinked Flux-Tube
- Observational Evidence of Sausage-Pinch Instability in Solar Corona by SDO/AIA
- Observational signatures of a kink-unstable coronal flux rope using Hinode/EIS
- Predictions of DKIST/DL-NIRSP observations for an off-limb kink-unstable coronal loop