Investigation of shock waves and tangential discontinuities of the cosmic plasma by the radio interference technique

Details Investigation of shock waves and tangential discontinuities of the cosmic plasma by the radio interference technique Investigation of shock waves and tangential discontinuities of the cosmic plasma by the radio interference technique

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976p%26ss...24..617s&link_type=abstract

Planetary and Space Science, vol. 24, July 1976, p. 617-620.

Computer Science

Sound

Cosmic Plasma, Density Distribution, Phase Shift, Plasma Dynamics, Radio Frequency Interference, Shock Waves, Bow Waves, Discontinuity, Magnetopause, Plasma Density, Plasmapause

Scientific paper

The possibility investigating cosmic plasma dynamics by the radio interference technique based on a finite time of radio wave propagation between the sounding and responding stations is shown. By locating the sounding station on a spacecraft the greatest contribution to the phase difference or the phase difference growth rate between the sounding and response signals are caused by disturbances in close proximity to the spacecraft. This method permits interplanetary shock waves and tangential discontinuities to be registered and the velocities and plasma density changes on their fronts to be determined. By using experimental data on the phase difference and phase growth rate information about plasma concentration jump, location and motion of bow shock wave and magnetopause and plasmapause can be obtained. Available experimental data about different disturbances of cosmic plasma were analyzed and the requirements on frequency stability of spacecraft-borne and ground-based radio equipment were estimated to register those disturbances. In most cases the relative stability provided by present atomic frequency standards is sufficient.

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