Plasma Observations near Venus
نویسندگان
چکیده
Prel iminary results of tbe measurements of the electroQ and ion components of plasma obtained by means of wide-angle detectors onboard the Venera-9 and Venera-l0 satell ites are presented. Stable electron and fluctuating ion fluxes were detected in the optical and corpuscular umbra. As a result of the plasma characteristics ob served at a few hundred kilometers above the optical umbra, we refer to this region as corpuscular penumbra. By means of a number of bow shock crossings, we analyzed its structure which turned out to be variable with time. The relatively small fluctuations of the bow shock crossing positions and grouping of corresponding shocks near the planet suggest the nonmagnetic nature of the Venus obstacle.
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REPORTS Encounter with Venus: L. Colin. Initial Pioneer Venus Magnetic Field Results: Dayside Observations: C. T. Russell, R. C. Elphic, J. A. Slavin . . . . .. .. .. . . . . .... Plasma Waves Near Venus: Initial Observations: F. L. Scarf, W. W. L. Taylor, I. M. Green.................................. Initial Observations of the Pioneer Venus Orbiter Solar Wind Plasma Experiment: J. Wolfe et al...
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