![]() | ![]() |
Astron. Astrophys. 354, 99-102 (2000)
![]() Available formats: HTML | PDF | (gzipped) PostScript The CORALIE survey for southern extra-solar planetsI. A planet orbiting the star Gliese 86 *
D. Queloz 1,2,
M. Mayor 1,
L. Weber 1,
A. Blécha 1,
M. Burnet 1,
B. Confino 3,
D. Naef 1,
F. Pepe 1,
N. Santos 1 and
S. Udry 1
Received 22 April 1999 / Accepted 1 October 1999 Abstract A 4 MJ planet with a 15.8 day orbital period has been detected from very precise radial velocity measurements with the CORALIE echelle spectrograph. A second remote and more massive companion has also been detected. All the planetary companions so far detected in orbit closer than 0.08 AU have a parent star with a statistically higher metal content compared to the metallicity distribution of other stars with planets. Different processes occuring during their formation may provide a possible explanation for this observation. Key words: stars: planetary
systems
* Based on observations collected at the La Silla Observatory, ESO Chile, with the echelle spectrograph CORALIE at the 1.2m Euler Swiss telescope Send offprint requests to: Didier.Queloz@obs.unige.ch Online publication: |