MHD wave Propagation in the Plasma Current Layer

• Main Authors: Jeff Lee, 李光武
• Other Authors: Hau L.-N.
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/47344254988366053309

碩士 === 國立中央大學 === 太空科學研究所 === 91 === ABSTRACT In this study we examine the characteristics of small-amplitude MHD waves propagating in isotropic inhomogeneous warm plasmas. The background medium considered is of one-dimensional Harris-sheet magnetic field configuration with the corresponding equilibrium thermal pressure. The model allows the waves to propagate in two directions, and , and a guided magnetic field component embedded within the anti-parallel field lines. The inhomogeneity is due to the magnetic field and plasma pressure as well as the plasma density. The dispersion relation is derived and eigen-frequencies as well as eigen-functions are calculated for various parameter values of plasma beta, propagation angle, wave length and background density profiles etc.