The emergence and evolution of twisted coronal magnetic fields: comparing models and observations
Abstract
We will present new results comparing coronal plasma observations to observables predicted by MHD models of twisted magnetic structures in the corona We will focus on their emergence through the photosphere their subsequent equilibrium states and their eruptive properties We will show that observations of coronal filaments before during and after eruptions can be explained In particular we will demonstrate that the observed relationship between filament filament cavity and hot X-ray sources such as sigmoids are reproduced for a variety of twisted magnetic structures in equilibrium We will also demonstrate that modeled loss of equilibrium and eruption of such magnetic structures can explain a range of observed behaviors of filaments their cavities and X-ray sigmoids during and after eruptions These include observations of partially-erupting filaments and the immediate reformation of X-ray sigmoids after an eruption
- Publication:
-
36th COSPAR Scientific Assembly
- Pub Date:
- 2006
- Bibcode:
- 2006cosp...36.1839G