The Activity and Size of the Nucleus of Comet Hale-Bopp (C/1995 O1)

@article{Weaver1997TheAA,
  title={The Activity and Size of the Nucleus of Comet Hale-Bopp (C/1995 O1)},
  author={H. Weaver and P. Feldman and M. A’Hearn and C. Arpigny and J. Brandt and M. Festou and M. Haken and J. McPhate and S. Stern and G. P. Tozzi},
  journal={Science},
  year={1997},
  volume={275},
  pages={1900 - 1904}
}
Analysis of Hubble Space Telescope (HST) images of comet Hale-Bopp (C/1995 O1) suggests that the effective diameter of the nucleus is between 27 to 42 kilometers, which is at least three times larger than that of comet P/Halley. The International Ultraviolet Explorer and HST spectra showed emissions from OH (a tracer of H2O) and CS (a tracer of CS2) starting in April 1996, and from the CO Cameron system (which primarily traces CO2) starting in June 1996. The variation of the H2O production rate… Expand
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