论文信息 - The SOPHIE search for northern extrasolar planets. III. A Jupiter-mass companion around HD 109246 - 字舞流文

The SOPHIE search for northern extrasolar planets. III. A Jupiter-mass companion around HD 109246

We report the detection of a Jupiter-mass planet discovered with the SOPHIE spectrograph mounted on the 1.93-m telescope at the Haute-Provence Observatory. The new planet orbits HD 109246, a G0V star slightly more metallic than the Sun. HD 109246b has a minimum mass of 0.77 MJup, an orbital period of 68 days, and an eccentricity of 0.12. It is placed in a sparsely populated region of the period distribution of extrasolar planets. We also present a correction method for the so-called seeing effect that affects the SOPHIE radial velocities. We complement this discovery announcement with a description of some calibrations that are implemented in the SOPHIE automatic reduction pipeline. These calibrations allow the derivation of the photon-noise radial velocity uncertainty and some useful stellar properties (v sini ,[ Fe/H], logR � ) directly from the SOPHIE data.

C. Moutou | D. Queloz | S. Perruchot | X. Delfosse | I. Boisse | A. Santerne | F. Pepe | C. Perrier | S. Udry | X. Bonfils | T. Forveille | D. Ehrenreich | F. Pont | A. Gallenne | N. C. Santos | C. Lovis | F. Bouchy | A. Eggenberger | A. Santerne | C. Moutou | F. Bouchy | G. H'ebrard | I. Boisse | N. Santos | L. Arnold | A. Lagrange | D. Ehrenreich | S. Udry | S. Perruchot | F. Pepe | C. Lovis | D. S'egransan | X. Bonfils | X. Delfosse | T. Forveille | D. Queloz | C. Perrier | A. Eggenberger | M. Desort | R. Díaz | A. Gallenne | F. Pont | A. Vidal-Madjar | L. Arnold | G. H'ebrard | A. M. Lagrange | R. F. Diaz | A. Vidal-Madjar | M. Desort | D. S'egransan | F. Pepe | D. Ségransan

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