A comparison of ground-based CCD H2O(+) observations with the Giotto measurements at Comet Halley

Details A comparison of ground-based CCD H2O(+) observations with the Giotto measurements at Comet Halley A comparison of ground-based CCD H2O(+) observations with the Giotto measurements at Comet Halley

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250a.507i&link_type=abstract

In ESA Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 1: Plasma and Gas p 507-510 (SEE N87

Physics

Plasma Physics

Charge Coupled Devices, Emission Spectra, Giotto Mission, Halley'S Comet, Space Observations (From Earth), Water, Ion Distribution, Mass Spectrometers, Plasma Physics

Scientific paper

Preliminary results from an analysis of the CCD imaging observations with H2O+ ion filters taken just hours after the Giotto fly-by at comet Halley indicate that secondary peaks in the H2O+ ion density might exist upstream and on the flank sides of the comet. Such structures, if indeed of plasma origin, could be related to the plasma pile-up region as detected by the Ion Mass spectrometer and Neutral Mass Spectrometer experiments on Giotto. Possibility of fast time variability for such plasma structures may also exist.

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