WEIGHING THE NON-TRANSITING HOT JUPITER τ Boo b

被引：87
|
作者：
Rodler, F. [1 ]
Lopez-Morales, M. [1 ]
Ribas, I. [1 ]
机构：
[1] Inst Ciencies Espai CSIC IEEC, Fac Ciencies, Bellaterra 08193, Spain
来源：
ASTROPHYSICAL JOURNAL LETTERS | 2012年 / 753卷 / 01期
基金：
美国国家科学基金会;
关键词：
planets and satellites: atmospheres; planets and satellites: individual (tau Boo b); techniques: radial velocities; techniques: spectroscopic; GIANT PLANET ATMOSPHERES; SUN-LIKE STARS; HD; 189733B; REFLECTED STARLIGHT; BROWN DWARF; UPPER LIMIT; SEARCH; SPECTRUM; EMISSION; 209458B;
D O I：
10.1088/2041-8205/753/1/L25
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report the detection of the orbital velocity of non-transiting hot Jupiter tau Boo b. By employing high-resolution ground-based spectroscopy around 2.3 mu m during one half-night, we are able to detect carbon monoxide absorption lines produced in the planet atmosphere, which shift significantly in wavelength during the course of the observations due to the orbital motion of the planet. This detection of the planetary signal results in the determination of the orbital inclination as being i = 47(-6)(+7) deg and, furthermore, allows us to solve for the exact planetary mass, m(p) = 5.6 +/- 0.7 M-Jup. This clearly confirms the planetary nature of the non-transiting companion to tau Boo.
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页数：5
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