Numerical simulations of linear magnetohydrodynamic waves in two-dimensional force-free magnetic fields

Details Numerical simulations of linear magnetohydrodynamic waves in two-dimensional force-free magnetic fields Numerical simulations of linear magnetohydrodynamic waves in two-dimensional force-free magnetic fields

Apr 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...369.1122a&link_type=abstract

Astronomy and Astrophysics, v.369, p.1122-1139 (2001)

Astronomy and Astrophysics

Astrophysics

6

Magnetohydrodynamics, Methods: Numerical, Sun: Oscillations, Sun: Magnetic Fields

Scientific paper

High resolution observations of the solar corona made with instruments onboard the SOHO and TRACE spacecrafts have provided new evidence for the presence of oscillations in a variety of coronal magnetic structures. Most of these observations have been interpreted in terms of linear standing or propagating magnetohydrodynamic (MHD) waves, but the theoretical understanding is far from complete since analytical solutions to the linearised MHD wave equations can only be found for very simple magnetic configurations. Taking into account that the solar corona is basically structured by force-free magnetic fields, our purpose in this paper is to present the derivation of the linear MHD wave equations for a two-dimensional force-free magnetic field configuration having longitudinal invariance, as well as to introduce a numerical code to solve the resulting system of coupled partial differential equations. The accuracy of the code has been checked by numerically solving two cases for which analytical or simple numerical solutions exist. To our knowledge, this is the only two-dimensional code developed to study the normal MHD modes of oscillation of a general force-free field with longitudinal invariance.

Affiliated with

Also associated with

No associations

Rating

Numerical simulations of linear magnetohydrodynamic waves in two-dimensional force-free magnetic fields 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 Numerical simulations of linear magnetohydrodynamic waves in two-dimensional force-free magnetic fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numerical simulations of linear magnetohydrodynamic waves in two-dimensional force-free magnetic fields will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1181835