VEGA observations of electric fields and plasma in the Comet Halley environment

Details VEGA observations of electric fields and plasma in the Comet Halley environment VEGA observations of electric fields and plasma in the Comet Halley environment

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pazh...12..683g&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 12, Sept. 1986, p. 683-687) Soviet Astronomy Letters (ISSN 0360-0327), vol. 12, Sept.-O

Astronomy and Astrophysics

Astronomy

2

Electric Field Strength, Halley'S Comet, Plasma Waves, Satellite Observation, Vega Project, Electron Density (Concentration), Electrostatic Probes

Scientific paper

The APV-V high-frequency plasma-wave analyzers aboard both Vega spacecraft measured electric fields at wave frequencies up to 300 kHz as well as the ambient plasma parameters. Substantial electric-field activity at f of about 100 Hz was detected (2.5-1) x 10 to the 6th km from the nucleus of Comet Halley. Closer to the nucleus the electric-field spectrum developed two maxima, whose evolution along the spacecraft trajectories has been traced.

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