MHD waves in coronal magnetic arcades

Details MHD waves in coronal magnetic arcades MHD waves in coronal magnetic arcades

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006astl...32..633m&link_type=abstract

Astronomy Letters, Volume 32, Issue 9, pp.633-640

Astronomy and Astrophysics

Astronomy

Pacs Numbers 96.60.-J

Scientific paper

We analyze the eigenmodes of the solar coronal magnetic arcade that describes the magnetic field of a bipolar active region using the eikonal method for ideal magnetohydrodynamic equations. We write out the eikonal equations for Alfvèn and magnetoacoustic waves and derive the equations for the amplitudes of the zeroth approximation. We construct the wave fields for Alfvèn and fast magnetoacoustic modes and derive the expressions for the eigenfrequencies. We show that Alfvèn modes of a given frequency are near a number of magnetic surfaces, while fast magnetoacoustic eigenmodes are near nonmagnetic surfaces. A discrete set of eigenfrequencies that continuously change from one surface to another corresponds to each such surface.

Affiliated with

Also associated with

No associations

Rating

MHD waves in coronal magnetic arcades 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 MHD waves in coronal magnetic arcades, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MHD waves in coronal magnetic arcades will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-996652