Flux braiding in a stratified atmosphere
Abstract
In recent years both Yohkoh and TRACE observations have been used to determine temperature profiles along magnetic loop structures in the solar corona. These have then been used to estimate the energy deposition along the loop by solving the static one dimensional energy equation including heat conduction and optical thin radiation. The various results claim to support energy deposition along the loop that are either uniform and strongly localised toward the foot-points. How can these variations occur? and which heating mechanisms can produce such different heating profiles? This paper investigates the effect of flux braiding in a stratified atmosphere with a narrow transition region. The results show a clear distinction between the energy deposition below and above the transition region, with a fast decay of the energy deposition below the transition region and a uniform deposition in the coronal part of the loop.
- Publication:
-
SOLMAG 2002. Proceedings of the Magnetic Coupling of the Solar Atmosphere Euroconference
- Pub Date:
- October 2002
- Bibcode:
- 2002ESASP.505..269G
- Keywords:
-
- Coronal Heating;
- Numerical MHD