2005/10/14 by F. Galland, A. M. Lagrange, A.‐M. Lagrange +6 · 1 citation
Physics and Astronomy · #Astro and Planetary Science #Astrophysics and Star Formation Studies #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1051/0004-6361:20054080
5 pages. Final version, accepted for publication (A&A)
arxiv created 2005/10/14 · openalex publication_date 2006/01/27 · arxiv updated 2009/12/01 · openalex created_date 2022/08/29 · openalex updated_date 2026/07/31
In the frame of the search for extrasolar planets and brown dwarfs around early-type stars, we present the results obtained on β Pictoris, which is surrounded by a circumstellar disk that is warped by the presence of a planet. We used 97 spectra acquired with CORALIE and 230 spectra acquired with HARPS to characterize the radial velocity behavior of β Pictoris and to infer constraints on the presence of a planet close to this star. With these data, we were able to exclude the presence of an inner giant planet (2 MJup at a distance to the star of 0.05 AU, 9 MJup at 1 AU). We also discuss the origin of the observed radial velocity variations in terms of δ Scuti type pulsations.