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Far-ultraviolet spectral images of comet Halley from sounding rocketsFar-ultraviolet images of comet Halley obtained from sounding rockets launched from White Sands Missile Range, New Mexico, on 24 February and 13 March, 1986, are presented. Direct electrographic images of the hydrogen coma of the comet were obtained at the Lyman-alpha wavelength along with objective spectra containing images of the coma at the oxygen, carbon, and sulfur resonance multiplets. Analysis of the Lyman-alpha images yields hydrogen atom production rates of 1.9 x 10 to the 30th/s and 1.4 x 120 to the 30th/s for the two observations. Images of oxygen, carbon, and sulfur emissions obtained with the objective grating spectrograph are presented for the first set of observations and preliminary production rates are derived for these elements.
Document ID
19870042029
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mccoy, R. P.
(Hulburt (E. O.) Center for Space Research Washington, DC, United States)
Carruthers, G. R.
(U.S. Navy, E.O. Hulburt Center for Space Research, Washington DC, United States)
Opal, C. B.
(McDonald Observatory Austin, TX, United States)
Date Acquired
August 13, 2013
Publication Date
December 4, 1986
Publication Information
Publication: Nature
Volume: 324
ISSN: 0028-0836
Subject Category
Astrophysics
Accession Number
87A29303
Funding Number(s)
CONTRACT_GRANT: NASA ORDER S-21601-D
Distribution Limits
Public
Copyright
Other

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