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Hunting for the lowest-mass exoplanets

Pepe, Francesco ; Mayor, Michel ; Lovis, Christophe ; Benz, Willy ; Bouchy, François ; Dumusque, Xavier ; Queloz, Didier ; Santos, Nuno C. ; Ségransan, Damien ; Udry, Stéphane

In: Proceedings of the International Astronomical Union, 2010, vol. 6, no. S276, p. 13-24

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    Title
    • Hunting for the lowest-mass exoplanets
    Author
    • Pepe, Francesco. Observatoire Astronomique de l'Université de Genève, 51, ch. des Maillettes, CH-1290 Versoix, Switzerland, email: Francesco.Pepe@unige.ch
    • Mayor, Michel. Observatoire Astronomique de l'Université de Genève, 51, ch. des Maillettes, CH-1290 Versoix, Switzerland, email: Francesco.Pepe@unige.ch
    • Lovis, Christophe. Observatoire Astronomique de l'Université de Genève, 51, ch. des Maillettes, CH-1290 Versoix, Switzerland, email: Francesco.Pepe@unige.ch
    • Benz, Willy. Physikalisches Institut der Universität Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
    • Bouchy, François. Institut d'Astrophysique de Paris, 98bis, bd Arago, F-75014 Paris, France
    • Dumusque, Xavier. Observatoire Astronomique de l'Université de Genève, 51, ch. des Maillettes, CH-1290 Versoix, Switzerland, email: Francesco.Pepe@unige.ch
    • Queloz, Didier. Observatoire Astronomique de l'Université de Genève, 51, ch. des Maillettes, CH-1290 Versoix, Switzerland, email: Francesco.Pepe@unige.ch
    • Santos, Nuno C.. Centro de Astrofísica da Universidade do Porto (CAUP), Rua das Estrelas, P-4150-762 Porto, Portugal
    • Ségransan, Damien. Observatoire Astronomique de l'Université de Genève, 51, ch. des Maillettes, CH-1290 Versoix, Switzerland, email: Francesco.Pepe@unige.ch
    • Udry, Stéphane. Observatoire Astronomique de l'Université de Genève, 51, ch. des Maillettes, CH-1290 Versoix, Switzerland, email: Francesco.Pepe@unige.ch
    Document Type
    • Postprint
    Language
    • English
    Published in
    • Proceedings of the International Astronomical Union, 2010, vol. 6, no. S276, p. 13-24. Cambridge University Press
    Other Version
    OAI-PMH Identifier
    • oai:doc.rero.ch:292018
    Summary
    In order to understand general planet characteristics and constrain formation models it is necessary to scan over the widest possible parameter range of discovered systems. Due to detection biases, the domain of very-low mass planets had remained poorly explored. Only with improving measurement precision it has been possible to enter in the sub-Neptune mass range. The HARPS planet search program has been particularly efficient in detecting such ice giants and super earths. The present talk will summarize the obtained results and the characteristics of the low-mass population of exoplanets