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A large dust/ice ratio in the nucleus of comet 9P/Tempel 1

Author

Listed:
  • Michael Küppers

    (Max-Planck Institut für Sonnensystemforschung)

  • Ivano Bertini

    (Università di Padova)

  • Sonia Fornasier

    (Università di Padova)

  • Pedro J. Gutierrez

    (Instituto de Astrofisica de Andalucía-CSIC)

  • Stubbe F. Hviid

    (Max-Planck Institut für Sonnensystemforschung)

  • Laurent Jorda

    (Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, Les Trois Lucs BP 8)

  • Horst Uwe Keller

    (Max-Planck Institut für Sonnensystemforschung)

  • Jörg Knollenberg

    (DLR Institute for Planetary Research)

  • Detlef Koschny

    (European Space Agency, ESTEC, SCI-SB)

  • Rainer Kramm

    (Max-Planck Institut für Sonnensystemforschung)

  • Luisa-Maria Lara

    (Instituto de Astrofisica de Andalucía-CSIC)

  • Holger Sierks

    (Max-Planck Institut für Sonnensystemforschung)

  • Nicolas Thomas

    (Universität Bern)

  • Cesare Barbieri

    (Università di Padova)

  • Philippe Lamy

    (Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, Les Trois Lucs BP 8)

  • Hans Rickman

    (Uppsala Astronomical Observatory)

  • Rafael Rodrigo

    (Instituto de Astrofisica de Andalucía-CSIC)

Abstract

Deep Impact strikes ice NASA's Deep Impact spacecraft met its intended fate on 4 July this year when it collided with Comet Tempel 1 at a relative velocity of over 36,000 km per hour. Telescopes all around the world and beyond it were trained on the event in order to glean information about the internal structure of a comet. Results from OSIRIS cameras on ESA's Rosetta spacecraft provided continuous coverage from 3 days before to 10 days after the impact. The impact created a crater 60 metres in diameter and the nature of the debris points to the comet as an ‘icy dustball’ rather than the more familiar concept of a ‘dirty snowball’.

Suggested Citation

  • Michael Küppers & Ivano Bertini & Sonia Fornasier & Pedro J. Gutierrez & Stubbe F. Hviid & Laurent Jorda & Horst Uwe Keller & Jörg Knollenberg & Detlef Koschny & Rainer Kramm & Luisa-Maria Lara & Holg, 2005. "A large dust/ice ratio in the nucleus of comet 9P/Tempel 1," Nature, Nature, vol. 437(7061), pages 987-990, October.
    • Handle: RePEc:nat:nature:v:437:y:2005:i:7061:d:10.1038_nature04236
    DOI: 10.1038/nature04236
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