Observations of comet 19P/Borrelly by the miniature integrated camera and spectrometer aboard deep space 1
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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 ∼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.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Observations of comet 19P/Borrelly by the miniature integrated camera and spectrometer aboard deep space 1 |
| Series title | Science |
| DOI | 10.1126/science.1069527 |
| Volume | 296 |
| Issue | 5570 |
| Year Published | 2002 |
| Language | English |
| Publisher | American Association for the Advancement of Science (AAAS) |
| Contributing office(s) | Astrogeology Science Center |
| Description | 5 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Science |
| First page | 1087 |
| Last page | 1091 |
| Other Geospatial | Comet Borrelly |
| Google Analytic Metrics | Metrics page |