Physics
Scientific paper
Jan 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3502111e&link_type=abstract
Geophysical Research Letters, Volume 35, Issue 2, CiteID L02111
Physics
11
Magnetospheric Physics: Mhd Waves And Instabilities (2149, 6050, 7836), Magnetospheric Physics: Plasma Sheet, Magnetospheric Physics: Magnetotail
Scientific paper
A new kind of magnetohydrodynamic waves are analyzed for a current sheet in a presence of a small normal magnetic field component varying along the sheet. As a background, two simplified models of a current sheet are considered with a uniform and nonuniform current distributions in the current sheet. On a basis of these two models, the flapping-type waves are obtained which are related to a coexistence of two gradients of the tangential and normal magnetic field components along the normal and tangential directions with respect to the current sheet. A stable situation for the current sheet is associated with a positive result of the multiplication of the two magnetic gradients, and unstable (wave growth) condition corresponds to a negative result of the product. In the stable region, the ``kink''-like wave mode is interpreted as so called flapping waves observed in the Earth's magnetotail current sheet.
Biernat Helfried K.
Erkaev Nikolai V.
Semenov Vladimir S.
No associations
LandOfFree
Magnetic double gradient mechanism for flapping oscillations of a current sheet 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 Magnetic double gradient mechanism for flapping oscillations of a current sheet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic double gradient mechanism for flapping oscillations of a current sheet will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-895986