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The thermal, mechanical, structural, and dielectric properties of cometary nuclei after Rosetta

Research output: Contribution to journalArticle

  • O. Groussin
  • N. Attree
  • Y. Brouet
  • V. Ciarletti
  • B. Davidsson
  • G. Filacchione
  • H. H. Fischer
  • B. Gundlach
  • M. Knapmeyer
  • J. Knollenberg
  • R. Kokotanekova
  • E. Kührt
  • C. Leyrat
  • D. Marshall
  • I. Pelivan
  • Y. Skorov
  • C. Snodgrass
  • T. Spohn
  • F. Tosi

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Original languageEnglish
Number of pages66
JournalSpace Science Reviews
Early online date2 May 2019
Publication statusE-pub ahead of print - 2 May 2019


The physical properties of cometary nuclei observed today relate to their complex history and help to constrain their formation and evolution. In this article, we review some of the main physical properties of cometary nuclei and focus in particular on the thermal, mechanical, structural and dielectric properties, emphasizing the progress made during the Rosetta mission. Comets have a low density of 480 $\pm$ 220 kg m-3 and a low permittivity of 1.9 - 2.0, consistent with a high porosity of 70 - 80 %, are weak with a very low global tensile strength $

    Research areas

  • astro-ph.EP

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