Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002apj...578..573l&link_type=abstract
The Astrophysical Journal, Volume 578, Issue 1, pp. 573-589.
Astronomy and Astrophysics
Astronomy
7
Magnetohydrodynamics: Mhd, Sun: Corona, Sun: Magnetic Fields
Scientific paper
We develop a three-dimensional model for the time evolution of a slender coronal loop anchored in multiple isolated photospheric flux elements. As a result of the composite photospheric boundaries, the coronal field comprises multiple flux domains. The model shows that motion at the footpoints results in current singularities developing along separators between domains. Motion at one end of the loop creates a nonsingular Alfvénic pulse. Repeated reflections from the complex photospheric boundaries change the pulse's current into a surface singularity traveling along the separator ribbon. Final relaxation leads to an equilibrium that is current-free within all of the coronal domains and contains a separator current sheet. The relation of the equilibrium current to the footpoint displacements confirms previous quasi-static models of three-dimensional separator current sheets.
Longcope Dana Warfield
van Ballegooijen Adriaan A.
No associations
LandOfFree
A Three-dimensional Dynamical Model of Current Sheet Formation in a Coronal Loop does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Three-dimensional Dynamical Model of Current Sheet Formation in a Coronal Loop, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Three-dimensional Dynamical Model of Current Sheet Formation in a Coronal Loop will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1660721