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AGU: Geophysical Research Letters

 

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  • Planetology: Comets and Small Bodies: Interactions with solar wind plasma and fields

Abstract

Plasma waves in the shock interaction regions at comet Giacobini‐Zinner

C. F. Kennel

TRW Space and Technology Group, Redondo Beach, CA 90278

F. V. Coroniti

TRW Space and Technology Group, Redondo Beach, CA 90278

F. L. Scarf

TRW Space and Technology Group, Redondo Beach, CA 90278

B. T. Tsurutani

Jet Propulsion Laboratory, Pasadena, CA 91109

E. J. Smith Jr.

Jet Propulsion Laboratory, Pasadena, CA 91109

S. J. Bame

Los Alamos National Laboratory, Los Alamos, NM 97545

J. T. Gosling

Los Alamos National Laboratory, Los Alamos, NM 97545

Basic uncertainties about the nature of the comet‐solar wind interaction have existed for decades, and even gross features of the interaction phenomena were poorly understood on theoretical grounds alone. The first discussions of measurements from the encounter of ICE (International Cometary Explorer) with Comet Giacobini‐Zinner did not provide immediate clarification of these issues. Here we analyze the nature of the interaction by examining the detailed evolution of the plasma wave spectra across the interaction region. It is shown that the cometary spectra are very similar to those detected at certain classes of interplanetary shocks and terrestrial bow shocks.

Received 16 May 1986; accepted 29 July 1986; .

Citation: Kennel, C. F., F. V. Coroniti, F. L. Scarf, B. T. Tsurutani, E. J. Smith Jr., S. J. Bame, and J. T. Gosling (1986), Plasma waves in the shock interaction regions at comet Giacobini‐Zinner, Geophys. Res. Lett., 13(9), 921–924.

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