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The P/Halley: Spatial distribution and scale lengths for C2, CN, NH2, and H2OFrom P/Halley long slit spectroscopic exposures on 12 dates, extending from Oct. 1985 to May 1986, spatial profiles were obtained for emissions by C2, CN, NH2, and OI(1D). Haser model scale lengths were fitted to these data. The extended time coverage allowed the checking for consistency between the various dates. The time varying production rate of P/Halley severely affected the profiles after perihelion, which is shown in two profile sequences on adjacent dates. Because of the time varying production rate, it was not possible to obtain reliable Haser model scale lengths after perihelion. The pre-perihelion analysis yielded Haser model scale lengths of sufficient consistency that they can be used for production rate determinations, whenever it is necessary to extrapolate from observed column densities within finite observing apertures. Results of scale lengths reduced to 1 AU are given and discussed.
Document ID
19910016678
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fink, Uwe
(Arizona Univ. Tucson., United States)
Combi, Michael
(Michigan Univ. Ann Arbor., United States)
Disanti, Michael A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1991
Publication Information
Publication: Lunar and Planetary Inst., Abstracts for the International Conference on Asteroids, Comets, Meteors 1991
Subject Category
Astrophysics
Accession Number
91N25992
Funding Number(s)
CONTRACT_GRANT: NAGW-1549
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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