EDP Sciences
Free access

This article has an erratum: [erratum]

Volume 491, Number 3, December I 2008
Page(s) 883 - 888
Section Planets and planetary systems
DOI http://dx.doi.org/10.1051/0004-6361:200810241
Published online 03 October 2008

A&A 491, 883-888 (2008)
DOI: 10.1051/0004-6361:200810241

Extrasolar planets and brown dwarfs around A–F type stars

V. A planetary system found with HARPS around the F6IV–V star HD 60532
M. Desort1, A.-M. Lagrange1, F. Galland1, H. Beust1, S. Udry2, M. Mayor2, and G. Lo Curto3

1  Laboratoire d'Astrophysique de Grenoble, UMR 5571 CNRS, Université Joseph Fourier, BP 53, 38041 Grenoble Cedex 9, France
    e-mail: morgan.desort@obs.ujf-grenoble.fr
2  Observatoire de Genève, Université de Genève, 51 chemin des Maillettes, 1290 Sauverny, Switzerland
3  European Southern Observatory, Alonso de Cordova 3107, Vitacura, Santiago, Chile

Received 22 May 2008 / Accepted 22 September 2008

Aims. In the framework of the search for extrasolar planets and brown dwarfs around early-type stars, we present the results obtained for the F-type main-sequence star HD 60532 (F6V) with HARPS.
Methods. Using 147 spectra obtained with HARPS at La Silla on a time baseline of two years, we studied the radial velocities of this star.
Results. HD 60532 radial velocities are periodically variable, and the variations have a Keplerian origin. This star is surrounded by a planetary system of two planets with minimum masses of 1 and 2.5 $M_{\rm Jup}$ and orbital separations of 0.76 and 1.58 AU, respectively. We also detect high-frequency, small-amplitude (10 m s-1 peak-to-peak) pulsations. Dynamical studies of the system point toward a possible 3:1 mean-motion resonance that should be confirmed within the next decade.

Key words: techniques: radial velocities -- stars: early-type -- stars: planetary systems -- stars: individual: HD 60532 -- stars: oscillations

© ESO 2008

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access.

An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.

  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account.
    In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.