Extrasolar planets and brown dwarfs around A-F type stars III. Beta-Pictoris : looking for planets, finding pulsations
Preprint
- 14 October 2005
Abstract
In the frame of the search for extrasolar planets and brown dwarfs around early-type stars, we present the results obtained on Beta-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 Beta-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 Delta-Scuti type pulsations.Keywords
All Related Versions
- Version 1, 2005-10-14, ArXiv
- Published version: Astronomy & Astrophysics, 447 (1), 355.
This publication has 0 references indexed in Scilit: