The SOPHIE search for northern extrasolar planets. III. A Jupiter-mass companion around HD 109246
The SOPHIE search for northern extrasolar planets. III. A Jupiter-mass companion around HD 109246
复制标题
索菲号寻找北方系外行星。
DOI：
10.1051/0004-6361/201014909
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发表时间：
2010
影响因子：
6.5
通讯作者：
A. Vidal
中科院分区：
文献类型：
--
作者：
I. Boisse;A. Eggenberger;N. Santos;C. Lovis;F. Bouchy;F. Bouchy;G. H'ebrard;L. Arnold;X. Bonfils;X. Bonfils;X. Delfosse;M. Desort;R. Díaz;D. Ehrenreich;T. Forveille;A. Gallenne;A. Lagrange;C. Moutou;S. Udry;F. Pepe;C. Perrier;S. Perruchot;F. Pont;D. Queloz;A. Santerne;D. Ségransan;A. Vidal
我们报告的探测到的一个1.93米的望远镜在上普罗旺斯天文台的索菲光谱仪发现的一个小行星质量。这颗新行星围绕HD 109246运行，HD 109246是一颗比太阳金属性稍强的G 0 V星星。HD 109246 b的最小质量为0.77 MJup，轨道周期为68天，离心率为0.12。它位于太阳系外行星周期分布的稀疏区域。我们还提出了一种修正方法，所谓的看到效果，影响苏菲径向速度。我们补充这个发现公告与一些校准的描述，在SOPHIE自动还原管道中实现。这些校准允许直接从SOPHIE数据导出光子噪声径向速度不确定性和一些有用的恒星性质（v sini，[ Fe/H]，logR）。
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.