Earth, Moon, and Planets

, Volume 90, Issue 1–4, pp 283–291 | Cite as

Impact Break-Up of Cometary Nuclei – Conclusions from Impact Experiments

  • Jacek Leliwa-Kopystyński


Experiments of impact-generated break-up of icy and icy/mineral targets were performed. Formulae for the velocity of ejecta and for energy of disruption were fitted to the experimental data. An assumption that these formulae can be extrapolated for kilometer-size bodies enabled us to discuss the consequences of impacts on cometary nuclei and on planetesimals. It was found that the porosity of the targets as well as their composition (mineral to total mass ratio), are the crucial parameters.

Cometary nuclei ices impacts 


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Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Jacek Leliwa-Kopystyński
    • 1
    • 2
  1. 1.Institute of GeophysicsWarsaw University, ul. Pasteura 7Poland
  2. 2.Space Research CenterPolish Academy of SciencesWarsawPoland

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