Distribution of plasma density and potential around a mesothermal ionospheric object

Details Distribution of plasma density and potential around a mesothermal ionospheric object Distribution of plasma density and potential around a mesothermal ionospheric object

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....94.5441s&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 94, May 1, 1989, p. 5441-5448. Research supported by Lockheed Missiles an

Other

9

Cylindrical Bodies, Density Distribution, Earth Ionosphere, Plasma Density, Plasma Potentials, Collisionless Plasmas, Integral Equations, Ionospheric Ion Density, Mach Number, Shock Waves

Scientific paper

For an object moving at mesothermal speeds in a collisionless plasma it is shown that the ion thermal motion as well as the coupling of the disturbances in front of the object to the wake region may play significant roles in modifying the plasma environment around the object. A dielectric cylinder moving transverse to its axis in the ionospheric plasma is considered. The Vlasov-Poisson system of equations is solved numerically to determine the charged particle density distribution and potential around the cylinder. A self-consistent solution is obtained without assuming any decoupling of the plasma in the wake and front regions and without neglecting thermal motion of the ions. The significance of this unified treatment in the prediction of possible ion shock wave disturbances is discussed. A range of ion Mach numbers typical of the conditions found in the ionosphere is used to parameterize the dependence of the charged particle density distribution on the object velocity.

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