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Clues on the frequency of giant planets in wide orbits

Published online by Cambridge University Press:  06 January 2010

T. Montmerle ,
D. Ehrenreich ,
A.-M. Lagrange ,
M. Bonavita ,
S. Desidera ,
C. Mordasini ,
W. Benz ,
J. Alibert  and
R. Gratton
M. Bonavita*
Affiliation:
INAF – Osservatorio Astronomico di Padova, Italy Dipartimento di Astronomia, Universitá degli studi di Padova Italy
S. Desidera
Affiliation:
INAF – Osservatorio Astronomico di Padova, Italy
C. Mordasini
Affiliation:
Physikalisches Institut, University of Bern, Universitá, Switzerland
W. Benz
Affiliation:
Physikalisches Institut, University of Bern, Universitá, Switzerland
J. Alibert
Affiliation:
Physikalisches Institut, University of Bern, Universitá, Switzerland
R. Gratton
Affiliation:
INAF – Osservatorio Astronomico di Padova, Italy
*
mariangela.bonavita@oapd.inaf.it
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Abstract

The available results of deep imaging searches for planetary companions around nearby stars provide us useful constraints on the frequencies of giant planets in very wide orbits. Here we present some preliminary results of the Monte Carlo simulation which compare the published detection limits with the generated planetary masses and orbital parameters. This allow us to consider the impications of the null detection, which comes from the direct imaging techniques, on the distributions of mass and semimajor axis derived from the results of the other search techniques and also to check the agreement of the observations with the available planetary formation models.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 41: Physics and Astrophysics of Planetary Systems , 2010 , pp. 383 - 386
Copyright
© EAS, EDP Sciences, 2010

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