Physics
Scientific paper
Mar 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13..267g&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 13, March 1986, p. 267-270. DOE-sponsored research.
Physics
50
Giacobini-Zinner Comet, Solar Wind, Space Plasmas, Electron Density (Concentration), Flow Velocity, International Sun Earth Explorer 3, Plasma Interactions, Plasma Temperature, Comets, Giacobini-Zinner, Ice Mission, Spacecraft Observations, Plasma, Fluctuations, Amplitude, Electrons, Density, Temperature, Velocity, Flow, Solar Wind, Interaction, Period, Ions, Plasma Electron Experiment
Scientific paper
Very large amplitude fluctuations in electron density, temperature, and flow velocity were a prominent aspect of the solar wind interaction with Comet Giacobini-Zinner during the ICE encounter in September 1985. These fluctuations were detected at a distance of at least 900,000 km and grew in amplitude as ICE approached the comet, peaking in amplitude 60,000 km from closest approach. A typical period associated with the fluctuations was about 2 min, which corresponds to a scale length in the solar wind frame of about 50,000 km. For the most part these fluctuations appear to be a product of one or more plasma instabilities associated with the solar wind pick up of cometary ions.
Asbridge J. R.
Bame J. Jr. S.
Gosling Jack T.
Thomsen Michelle F.
Zwickl R. D.
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