New kinetic instability: Oblique Alfvén fire hose
نویسندگان
چکیده
منابع مشابه
Hellinger and Matsumoto : Oblique Alfvén Fire Hose a 5 - 10 , 521
Two instabilities could take place in plasma with a bi-Maxwellian proton distribution function with Tp‖ > Tp⊥, where Tp‖ and Tp⊥ are proton temperatures, parallel and perpendicular, respectively, to the background magnetic field. The first instability is the fire hose (or whistler fire hose), generating low-frequency whistler waves at parallel propagation. We found a new, second instability, th...
متن کاملAlfvén instability in a compressible flow.
A new ideal magnetohydrodynamic instability is presented. It is shown that linear incompressible Alfvénic disturbances can get over-reflected and exponentially amplified in compressible plasma flows. A simple and transparent stability criterion for a two-layer model is derived. The instability does not require a shear in the flow and may arise for rather moderate sub-Alfvénic flow speeds. It is...
متن کاملVlasov simulation of kinetic shear Alfvén waves
The treatment of kinetic shear Alfvén waves in homogeneous magnetized plasmas by means of Vlasov simulation is examined. To this end, the driftkinetic version of the Vlasov–Maxwell equations is solved via various numerical schemes, all employing a grid in (1 + 1)D phase space. Since kinetic shear Alfvén waves are Landau damped, the use of an equidistant grid in velocity space leads to a recurre...
متن کاملNonlinear competition between the whistler and Alfvén fire hoses
We examine a competition between the whistler and Alfvén fire hoses driven by bi-Maxwellian protons with Tp‖ > Tp⊥, where Tp‖ and Tp⊥ are proton temperatures, parallel and perpendicular to the background magnetic field, respectively. We extend the work of Hellinger and Matsumoto [2000] using a two-dimensional hybrid simulation that includes both the instabilities. In the simulation the whistler...
متن کاملTest of the Electron Hose Instability in the E157 Experiment*
The E157 experiment is designed to demonstrate highgradient Plasma Wake Field Acceleration over a significant length. It has been suggested that the electron hose instability of the drive beam will degrade the performance of this experiment because the hosing tailelectrons will not fully sample the highest acceleration field. In this paper a parasitic experiment designed to test the extent of t...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 2000
ISSN: 0148-0227
DOI: 10.1029/1999ja000297