Three new massive companions in the planet-brown dwarf boundary detected with SOPHIE

R.F. Díaz; G. Hébrard; F. Bouchy; I. Boisse; X. Bonﬁls; L. Arnold; X. Delfosse; M. Desort; A. Eggenberger; D. Ehrenreich; T. Forveille; A.-M. Lagrange; C. Lovis; C. Moutou; F. Pepe; C. Perrier; D. Queloz; A. Santerne; N. C. Santos; D. Ségransan; S. Udry; A. Vidal-Madjar

doi:10.1051/epjconf/20101102006

EPJ

Three new massive companions in the planet-brown dwarf boundary detected with SOPHIE

R.F. Díaz¹^,2, G. Hébrard¹^,2, F. Bouchy¹^,2, I. Boisse¹, X. Bonﬁls³^,4, L. Arnold², X. Delfosse³, M. Desort³, A. Eggenberger³, D. Ehrenreich³, T. Forveille³, A.-M. Lagrange³, C. Lovis⁴, C. Moutou⁵, F. Pepe⁴, C. Perrier³, D. Queloz⁴, A. Santerne⁵, N. C. Santos⁶, D. Ségransan⁴, S. Udry⁴ and A. Vidal-Madjar¹

¹ Institut d’Astrophysique de Paris, CNRS/UPMC, Paris, France
[diaz@iap.fr]
² Observatoire de Haute Provence, 04870 St Michel l’Observatoire, France
³ Laboratoire d’Astrophysique de Grenoble, Grenoble, France.
⁴ Observatoire de Genève, Univ. de Genève, Sauverny, Switzerland.
⁵ Laboratoire d’Astrophysique de Marseille, Marseille, France.
⁶ Centro de Astrofísica, Universidade do Porto, Porto, Portugal.

Abstract

We report the detection of three new massive companions to mainsequence stars based on precise radial velocities obtained with the SOPHIE spectrograph, as part of an ongoing programme to search for extrasolar planets. The minimum masses of the detected companions range from around 16 Mjup to around 60 Mjup, and therefore lie at both sides of the boundary between massive extrasolar planets and brown dwarves.

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