The closest extrasolar planet: A giant planet around the M4 dwarf Gl 876
Astrophysics
2007-05-23 v2
Abstract
High precision radial velocity observations of the nearby M4 dwarf Gl 876 with the Observatoire de Haute Provence 1.93 m telescope and the new 1.20 m swiss telescope at la Silla indicate the presence of a jovian mass companion to this star. The orbital fit to the data gives a period of 60.8 days, a velocity amplitude of 246 m/s and an eccentricity of 0.34. Assuming that Gl 876 has a mass of 0.3 solar masses, the mass function implies a mass for the companion of 2/sin(i) Jupiter masses.
Cite
@article{arxiv.astro-ph/9808026,
title = {The closest extrasolar planet: A giant planet around the M4 dwarf Gl 876},
author = {Xavier Delfosse and Thierry Forveille and Michel Mayor and Christian Perrier and Dominique Naef and Didier Queloz},
journal= {arXiv preprint arXiv:astro-ph/9808026},
year = {2007}
}
Comments
4 pages LaTeX, Accepted for publication in A&A Letters. Some sections improved or clarified after referee's comments