Shear Alfvén wave density dips in electron-positron-ion plasmas

• DOI: 10.1063/1.1573212
• Publication Date: 2003-05-22T22:01:44Z
• Authors: H. Saleem; S. Mahmood
• Keywords: Gyroradius; Alfvén wave

Nonlinear kinetic Alfvén waves are studied in an electron-positron-ion plasma. It is noticed that the nonlinearity and Larmor radius effects can compromise to give rise density dips such plasmas super Alfvénic regime. A comparison presented with previous results, which predict humps if ion inertial parallel external magnetic field taken into account.