Observations of comet 19P/Borrelly by the miniature integrated camera and spectrometer aboard Deep Space 1.

Abstract

The nucleus of the Jupiter-family comet 19P/Borrelly was closely observed by the Miniature Integrated Camera and Spectrometer aboard the Deep Space 1 spacecraft on 22 September 2001. The 8-kilometer-long body is highly variegated on a scale of 200 meters, exhibiting large albedo variations (0.01 to 0.03) and complex geologic relationships. Short-wavelength infrared spectra (1.3 to 2.6 micrometers) show a slope toward the red and a hot, dry surface (</=345 kelvin, with no trace of water ice or hydrated minerals), consistent with approximately 10% or less of the surface actively sublimating. Borrelly's coma exhibits two types of dust features: fans and highly collimated jets. At encounter, the near-nucleus coma was dominated by a prominent dust jet that resolved into at least three smaller jets emanating from a broad basin in the middle of the nucleus. Because the major dust jet remained fixed in orientation, it is evidently aligned near the rotation axis of the nucleus.

Cite this paper

@article{Soderblom2002ObservationsOC, title={Observations of comet 19P/Borrelly by the miniature integrated camera and spectrometer aboard Deep Space 1.}, author={Larry A. Soderblom and Theresa L. Becker and Gareth Bennett and D . C . Boice and Daniel T. Britt and Robert H. Brown and Bonnie J. Buratti and Charles Lee Isbell and Benjamin S. Giese and Tyson Hare and Michael D. Hicks and Elpitha Howington-Kraus and Randolph L. Kirk and Mary Alice Lee and Robert M. Nelson and Juergen Oberst and Tobias C. Owen and M. D. Rayman and Bill R. Sandel and Samantha Stern and N Thomas and R Yelle}, journal={Science}, year={2002}, volume={296 5570}, pages={1087-91} }