IUE observations of faint comets

Details IUE observations of faint comets IUE observations of faint comets

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981icar...47..449w&link_type=abstract

(International Astronomical Union and American Astronomical Society, Colloquium on Comets: Gases, Ices, Grains, and Plasma, 61st

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62

Chemical Evolution, Comets, Iue, Ultraviolet Spectra, Hydroxyl Emission, Low Visibility, Optical Density, Solar Orbits, Spectrographs, Water, Oxygen, Hydrogen, Carbon, Sulfur, Analysis, Gases, Bradfield Comet, Carbon Monosulfide, Comets, Observations, Iue, International Ultraviolet Explorer, Ultraviolet, Spectrum, P/Encke Comet, P/Tuttle Comet, P/Stephan-Oterma Comet, Meier Comet, P/Borrelly Comet, Panther Comet, Comparisons, Velocity, Distance, Optical Properties, Depth, Composition, Origin, Data, Brightne

Scientific paper

Ultraviolet spectra of seven comets taken with the same instrument are given. The comets P/Encke (1980), P/Tuttle (1980 h), P/Stephan-Oterma (1980 g), and Meier (1980 q) were observed in November and December 1980 with the IUE satellite, and comets P/Borrelly (1980 i) and Panther (1980 u) were observed with the IUE on March 6, 1981. The spectra of these comets are compared with one another, as well as with comet Bradfield (1978 X), which was extensively studied earlier in 1980 with the IUE. To simplify the interpretation of the data and to minimize the dependence upon a specific model, the spectra are compared at approximately the same value of heliocentric distance whenever possible. Effects arising from heliocentric velocity, geocentric distance, and optical depth are also discussed. All of the cometary spectra are found to be remarkably similar, suggesting that these comets may have a common composition and origin.

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