The Discovery of Argon in Comet C/1995 O1 (Hale-Bopp)

S. A. Stern; D. Slater; M. Festou; J. Parker; G. R. G. M. A'Hearn; E. Wilkinson

DOI:10.1086/317312

Corpus ID: 16759616

The Discovery of Argon in Comet C/1995 O1 (Hale-Bopp)

@article{Stern2000TheDO,
  title={The Discovery of Argon in Comet C/1995 O1 (Hale-Bopp)},
  author={S. A. Stern and D. Slater and M. Festou and J. Parker and G. R. G. M. A'Hearn and E. Wilkinson},
  journal={The Astrophysical Journal},
  year={2000},
  volume={544}
}

S. A. Stern, D. Slater, +3 authors E. Wilkinson

Published 2000

Physics

The Astrophysical Journal

On 1997 March 30.14, we observed the EUV spectrum of the bright comet C/1995 O1 (Hale-Bopp) at the time of its perihelion, using our Extreme Ultraviolet Spectrograph sounding-rocket telescope/spectrometer. The spectra reveal the presence H Lyβ, O+, and, most notably, argon. Modeling of the retrieved Ar production rates indicates that comet Hale-Bopp is enriched in Ar relative to cosmogonic expectations. This in turn indicates that Hale-Bopp's deep interior has never been exposed to the 35-40 K… CONTINUE READING

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