Deep Impact and the Origin and Evolution of Cometary Nuclei

@article{AHearn2008DeepIA,
  title={Deep Impact and the Origin and Evolution of Cometary Nuclei},
  author={Michael F. A’Hearn},
  journal={Space Science Reviews},
  year={2008},
  volume={138},
  pages={237-246}
}
  • M. A’Hearn
  • Published 17 April 2008
  • Physics, Geology
  • Space Science Reviews
The Deep Impact mission revealed many properties of comet Tempel 1, a typical comet from the Jupiter family in so far as any comet can be considered typical. In addition to the properties revealed by the impact itself, numerous properties were also discovered from observations prior to the impact just because they were the types of observations that had never been made before. The impact showed that the cometary nucleus was very weak at scales from the impactor diameter (∼1 m) to the crater… 

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References

SHOWING 1-10 OF 31 REFERENCES

Detection of water ice grains after the DEEP IMPACT onto Comet 9P/Tempel 1

Context. Icy grains in the inner coma of a comet may play an important role in the energy balance and in the production of certain gas coma species. Their existence has therefore been assumed

Structure and density of cometary nuclei

Abstract— Understanding the nature of the cometary nucleus remains one of the major problems in solar system science. Whipple's (1950) icy conglomerate model has been very successful at explaining a

A McDonald Observatory Study of Comet 19P/Borrelly: Placing the Deep Space 1 Observations into a Broader Context

We present imaging and spectroscopic data on Comet 19P/Borrelly that were obtained around the time of the Deep Space 1 encounter and in subsequent months. In the four months after perihelion, the

The Thickness and Formation Age of the Surface Layer on Comet 9P/Tempel 1

Cometary nuclei are believed to contain important information on the condition of the solar nebula, but there is little observational data available on their interior structure. Our ground-based