A planet orbiting the star Gliese 86

Details A planet orbiting the star Gliese 86 A planet orbiting the star Gliese 86

1999-10-12

arxiv.org/abs/astro-ph/9910223v1

Astronomy and Astrophysics

Astrophysics

5 pages, 4 figures. A&A accepted

Scientific paper

A 4MJ planet with a 15.8day 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.

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