Observations of the plasma environment of Comet Halley during the VEGA flybys

Details Observations of the plasma environment of Comet Halley during the VEGA flybys Observations of the plasma environment of Comet Halley during the VEGA flybys

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989angeo...7..141g&link_type=abstract

Annales Geophysicae (ISSN 0980-8752), vol. 7, April 1989, p. 141-149.

Computer Science

Numerical Analysis

10

Cometary Atmospheres, Electron Density (Concentration), Flyby Missions, Halley'S Comet, Vega Project, Comet Nuclei, Cometary Magnetospheres, Electrostatic Probes, Spacecraft Charging, Comets, Halley, Plasma, Vega Missions, Spacecraft Observations, Analysis, Numerical Methods, Kinetic Energy, Electrons, Density, Temperature, Comae, Diagrams, Calculations

Scientific paper

A numerical analysis of electron density and temperature measurements obtained near Comet Halley with Langmuir probes aboard the Vega 1 and 2 spacecraft during March 1986 is presented. In the distance range of 3 x 10 to the 5th to 10 to the 6th km from the nucleus, the electron density measured by Vega 1 was about 60/cu cm and that measured by Vega 2 was about 40/cu cm. The potentials of the spacecraft were found to vary between 2 and 3 V in the outer coma.

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