Electrostatic Field About an Ion Moving Slowly in a Plasma

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Abstract
A particle treatment is used to determine the potential distribution about an ion moving subsonicly through a plasma. A fore‐aft asymmetry is obtained which has the effect of producing a drag on the ion. This asymmetry is the most important difference between the results of this treatment and those obtained for the subsonic case by the linearized treatment of the electrohydrodynamic equations.