HD 80606 b, a planet on an extremely elongated orbit
HD 80606 b, a planet on an extremely elongated orbit
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HD 80606 b,一颗轨道极长的行星
DOI:
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发表时间:
2001
期刊:
影响因子:
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通讯作者:
S. Zucker
中科院分区:
文献类型:
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作者:
D. Naef;D. Latham;M. Mayor;T. Mazeh;J. Beuzit;G. Drukier;C. Perrier;D. Queloz;J. Sivan;G. Torres;S. Udry;S. Zucker
We report the detection of a planetary companion orbiting the solar-type star HD 80606, the brighter component of a wide binary with a projected separation of about 2000 AU. Using high-signal spectroscopic observations of the two components of the visual binary, we show that they are nearly identical. The planet has an orbital period of 111.8 days and a minimum mass of 3.9 M_Jup. With e=0.927, this planet has the highest orbital eccentricity among the extrasolar planets detected so far. We finally list several processes this extreme eccentricity could result from.