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Ultraviolet spectrophotometry of Comet Giacobini-Zinner during the ICE encounterThe IUE's UV spectrophotometer was used to monitor Comet Giacobini-Zinner's H2O production rate from June to October, 1985, in support of the International Cometary Explorer (ICE) mission. Observation results for the spatial and temporal variation and the abundance or upper limits of C, CO, CO(+), CO2(+), CS, H, Mg(+), O, OH, and S, between September 9 and 12, included the time of the ICE encounter: at this time, the H2O production rate obtained was consistent with a number of gas production rates derived indirectly from the ICE experiments. A comparison of the CO2(+) ion abundance with the total electron density measured by the plasma electron and radio science experiments on ICE implies an ion deficiency relative to electrons, so that the satisfaction of charge balance criteria requires the presence of a major ion population not detected by remote sensing.
Document ID
19870049348
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Mcfadden, Lucy A.
(Maryland Univ. College Park, MD, United States)
Ahearn, Michael F.
(Maryland, University College Park, United States)
Feldman, Paul D.
(Johns Hopkins University Baltimore, MD, United States)
Boehnhardt, Hermann
(Remeis-Sternwarte Bamberg, Germany)
Rahe, Juergen
(NASA Solar System Exploration Div. Washington DC, United States)
Festou, Michel C.
(Besancon Observatoire, France)
Brandt, John C.
(Maryland Univ. College Park, MD, United States)
Maran, Stephen P.
(Maryland Univ. College Park, MD, United States)
Niedner, Malcolm B.
(Maryland Univ. College Park, MD, United States)
Smith, Andrew M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 13, 2013
Publication Date
February 1, 1987
Publication Information
Publication: Icarus
Volume: 69
ISSN: 0019-1035
Subject Category
Astrophysics
Accession Number
87A36622
Funding Number(s)
CONTRACT_GRANT: NSG-5393
CONTRACT_GRANT: NAG5-252
Distribution Limits
Public
Copyright
Other

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