Characteristics of Solitary Waves and Weak Double Layers in the Magnetospheric Plasma

摘要

The wave experiment of the Swedish Viking satellite frequently detected dynamic small scale (approx 100 m), large amplitude rarefactive (delta n/n less than or = 50 percent) solitary waves of negative potential (phi less than or = 2 V) moving upwards along the magnetic field lines (v = 5 to 50 km/sec). The structures which resemble ion holes often have an upward directed net potential drop (less than or = 1 volt) and are interpreted as weak double layers.