Evolution of the ultraviolet coma of comet Austin (1982g.)

Details Evolution of the ultraviolet coma of comet Austin (1982g.) Evolution of the ultraviolet coma of comet Austin (1982g.)

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...131..394f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 131, no. 2, Feb. 1984, p. 394-398.

Astronomy and Astrophysics

Astronomy

14

Abundance, Coma, Comets, Ultraviolet Spectra, Cosmochemistry, Evolution (Development), Iue, Water, Comets, Comae, Ultraviolet, Wavelengths, Evolution, Austin, Spectra, International Ultraviolet Explorer, Astronomy, Observations, Distance, Comparisons, Composition, Water, Production Rate, Spectroscopy, Iue

Scientific paper

Ultraviolet spectra of comet Austin (1982) obtained in July 1982 at heliocentric distances ranging from 1.10 to 0.81 AU preperihelion with the IUE reveal that the comet is very similar in chemical composition and appearance to comet Bradfield (1979X). In addition, the derived H2O production rate is found to vary with heliocentric distance as r to the -3.6, similar to the r to the -3.7 behavior found for comet Bradfield. It is pointed out, however, that the limited sample rate precludes the observation of the short-term variations which could be produced by a rotating nonuniform cometary nucleus.

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