Comet P/Giacobini-Zinner electron and H2O column densities from ICE and ground-based observationsAn H2O(+) emission profile extracted from an optical CCD spectrogram obtained during the ICE/Giacobini-Zinner encounter is compared to the electron density profile deduced from in-situ measurements by the ratio experiment aboard ICE. It is concluded that the electrons and the H2O(+) ions are distributed similarly 9600 km tailward from the cometary nucleus; that the ratio of number densities of H2O(+) ions to electrons is 1/4 at this point; and that the width of the plasma sheet is 16,000 km.
Document ID
19870015798
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Meyer-Vernet, N. (Observatoire de Paris-Meudon France)
Strauss, Michael A. (Observatoire de Paris-Meudon France)
Steinberg, J. L. (Observatoire de Paris-Meudon France)
Spinrad, Hyron (Observatoire de Paris-Meudon France)
Mccarthy, Patrick J. (California Univ. Berkeley., United States)
Date Acquired
September 5, 2013
Publication Date
December 1, 1986
Publication Information
Publication: ESA Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 1: Plasma and Gas