Ground-based constraints on the H2O(+)/CO(+) abundance ratio and dust impact rate in comet P/Giacobini-Zinner - Comparison with the ICE spacecraft results

Details Ground-based constraints on the H2O(+)/CO(+) abundance ratio and dust impact rate in comet P/Giacobini-Zinner - Comparison with the ICE spacecraft results Ground-based constraints on the H2O(+)/CO(+) abundance ratio and dust impact rate in comet P/Giacobini-Zinner - Comparison with the ICE spacecraft results

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...322..544w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 322, Nov. 1, 1987, p. 544-548.

Astronomy and Astrophysics

Astrophysics

7

Abundance, Astronomical Spectroscopy, Carbon Monoxide, Cosmic Dust, Giacobini-Zinner Comet, Water, Ground Stations, International Sun Earth Explorer 3, Comets, Giacobini-Zinner, Earth-Based Observations, Water, Carbon Monoxide, Abundance, Dust, Impacts, Comparisons, Spacecraft Observations, Spectra, Ice Mission, Spectrophotometry, Production Rates, Calculations

Scientific paper

The results of ground-based spectrophotometry of the comet P/Giacobini-Zinner (1984e) near perihelion and the time of the International Cometary Explorer (ICE) encounter are presented. The authors find that the abundance ratio [H2O+/CO+] is 1.2±0.6 compared with the ICE result of approximately 5. Analysis of the dust production as measured by the optical continuum predicts a dust impact rate on the S antenna of the ICE of ≤0.01 s-1 at closest approach. This upper limits is consistent with the ICE results.

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