Fulltext

How common are Earth-Moon planetary systems?

Elser, Sebastian ; Stadel, Joachim ; Moore, Ben ; Morishima, Ryuji

In: Proceedings of the International Astronomical Union, 2010, vol. 6, no. S276, p. 414-415

Ajouter à la liste personnelle
    Titre
    • How common are Earth-Moon planetary systems?
    Auteur
    • Elser, Sebastian. Institute for Theoretical Physics, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland email: selser@physik.uzh.ch, stadel@physik.uzh.ch, moore@physik.uzh.ch
    • Stadel, Joachim. Institute for Theoretical Physics, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland email: selser@physik.uzh.ch, stadel@physik.uzh.ch, moore@physik.uzh.ch
    • Moore, Ben. Institute for Theoretical Physics, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland email: selser@physik.uzh.ch, stadel@physik.uzh.ch, moore@physik.uzh.ch
    • Morishima, Ryuji. LASP, University of Colorado, Colorado 80303-7814, USA email: ryuji.morishima@lasp.colorado.edu
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Proceedings of the International Astronomical Union, 2010, vol. 6, no. S276, p. 414-415. Cambridge University Press
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:304555
    Summary
    The Earth's comparatively massive moon, formed via a giant impact on the proto-Earth, has played an important role in the development of life on our planet. Here we study how frequently Earth-Moon planetary systems occur. We derive limits on the collision parameters that may guarantee the formation of a circumplanetary disk after a protoplanet collision that could form a satellite. Based on a large set of simulations, we observe potential moon forming impacts and conclude that giant impacts with the required energy and orbital parameters for producing a binary planetary system occur frequently with more than one in ten terrestrial planets hosting a massive moon