The SOPHIE search for northern extrasolar planets . I. A companion around HD 16760 with mass close to the planet/brown-dwarf transition
The SOPHIE search for northern extrasolar planets . I. A companion around HD 16760 with mass close to the planet/brown-dwarf transition
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索菲号搜寻北方系外行星。
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
A. Vidal
中科院分区：
文献类型：
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作者：
F. Bouchy;G. Hébrard;S. Udry;X. Delfosse;I. Boisse;M. Desort;X. Bonfils;A. Eggenberger;D. Ehrenreich;T. Forveille;A. Lagrange;H. Coroller;C. Lovis;C. Moutou;F. Pepe;C. Perrier;F. Pont;D. Queloz;N. Santos;D. Ségransan;A. Vidal
我们报道了利用安装在OHP1.93米望远镜上的索菲光谱仪，发现了围绕G5V恒星HD 16760运行的一颗亚星伴星或一颗大质量木星。介绍了该光谱仪的特点和性能，以及索菲系外行星联盟计划。HD 16760b的最小质量为14.3MJup，轨道周期为465天，偏心率为0.067，似乎正好位于巨行星质量分布的末端，靠近行星/棕矮星的过渡。它相当圆的轨道支持着气态原行星盘的形成。
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 MJup, 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.