Computer Science – Sound
Scientific paper
Mar 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ssrv...33...99b&link_type=abstract
(Lindau Workshop on the Source Region of the Solar Wind, 9th, Lindau, West Germany, Nov. 1981.) Space Science Reviews, vol. 33,
Computer Science
Sound
33
Radio Astronomy, Satellite Sounding, Solar Corona, Ulysses Mission, Faraday Effect, Magnetohydrodynamic Flow, Phase Velocity, Scintillation, Signal To Noise Ratios, Solar Eclipses, Spectral Line Width
Scientific paper
Results of solar coronal sounding using the radio telemetry link between an interplanetary spacecraft and the earth as the spacecraft is occulted by the sun are reviewed. Following a brief outline of the geometric constraints on the observational situation, in which the probe is usually located near superior conjunction, consideration is given to the principles of the various types of radio science investigations conducted in the solar corona (group/phase velocity, Faraday rotation, spectral/angular broadening, intensity/phase scintillation, dual propagation path correlation) and the corresponding physical quantities inferred (electron density, magnetic field, plasma flow velocity, electron density fluctuation spectrum and plasma flow velocity, respectively). Radio occultation observations of dynamic coronal events are also noted, and prospects for future coronal sounding during the Galileo and ISPM flights and proposed interplanetary missions are surveyed.
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