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The SOPHIE search for northern extrasolar planets

Authors :: François Bouchy
A. Eggenberger
Francesco Pepe
David Ehrenreich
Anne-Marie Lagrange
T. Forveille
Isabelle Boisse
M. Desort
Stéphane Udry
Nuno C. Santos
D. Queloz
C. Lovis
Frederic Pont
Damien Ségransan
Guillaume Hébrard
C. Moutou
X. Delfosse
Xavier Bonfils
Alfred Vidal-Madjar
H. Le Coroller
C. Perrier
Laboratoire d'Astrophysique de Grenoble (LAOG)
Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
Source :: Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2009, 505, pp.853. ⟨10.1051/0004-6361/200912427⟩
Publication Year :: 2009
Publisher :: EDP Sciences, 2009.
Abstract: International audience; We report on the discovery of a substellar companion or a massive Jupiter orbiting the G5V star HD 16760 using the spectrograph SOPHIE installed on the OHP 1.93-m telescope. Characteristics and performances of the spectrograph are presented, as well as the SOPHIE exoplanet consortium program. With a minimum mass of 14.3 {M}_Jup, an orbital period of 465 days and an eccentricity of 0.067, HD 16760b seems to be located just at the end of the mass distribution of giant planets, close to the planet/brown-dwarf transition. Its quite circular orbit supports a formation in a gaseous protoplanetary disk. Based on observations made with SOPHIE spectrograph on the 1.93-m telescope at Observatoire de Haute-Provence (CNRS/OAMP), France (program 07A.PNP.CONS). Table 2 is also available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/505/853