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Planets and brown dwarfs around A–F main-sequence stars: performances of radial-velocity surveys with HARPS and first detections

Published online by Cambridge University Press:  06 January 2010

T. Montmerle ,
D. Ehrenreich ,
A.-M. Lagrange ,
M. Desort ,
A.-M. Lagrange ,
F. Galland ,
S. Udry  and
M. Mayor
M. Desort
Affiliation:
Laboratoire d'Astrophysique de Grenoble, UMR 5571 CNRS, Université Joseph Fourier, BP. 53, 38041 Grenoble Cedex 9, France
A.-M. Lagrange
Affiliation:
Laboratoire d'Astrophysique de Grenoble, UMR 5571 CNRS, Université Joseph Fourier, BP. 53, 38041 Grenoble Cedex 9, France
F. Galland
Affiliation:
Laboratoire d'Astrophysique de Grenoble, UMR 5571 CNRS, Université Joseph Fourier, BP. 53, 38041 Grenoble Cedex 9, France
S. Udry
Affiliation:
Observatoire de Genève, Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland
M. Mayor
Affiliation:
Observatoire de Genève, Université de Genève, 51 Chemin des Maillettes, 1290 Sauverny, Switzerland
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Abstract

Due to their high vsini, early-type main-sequence stars have been considered as unsuitable targets for radial-velocity surveys. Knowing about the presence of planets around those stars is however a key issue to understand the impact of the mass of the central star on the way planets form and evolve. We developped in recent years a method that allows to search for planets around those stars and started radial-velocity surveys focused on these targets. We report here some results obtained so far in terms of performances and detection.

Information

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 41: Physics and Astrophysics of Planetary Systems , 2010 , pp. 99 - 102
Copyright
© EAS, EDP Sciences, 2010

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References

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