Planets around Giant Stars

被引：0
|
作者：
Quirrenbach, Andreas [1 ]
Reffert, Sabine [1 ]
Bergmann, Christoph [1 ]
机构：
[1] Heidelberg Univ, ZAH, D-69117 Heidelberg, Germany
来源：
PLANETARY SYSTEMS BEYOND THE MAIN SEQUENCE | 2011年 / 1331卷
关键词：
Extrasolar Planets; Giant Stars; Radial Velocity Technique; PRECISE RADIAL-VELOCITIES; BETA-GEMINORUM; IOTA-DRACONIS; COMPANION; DISCOVERY;
D O I：
10.1063/1.3556189
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present results from a radial-velocity survey of 373 giant stars at Lick Observatory, which started in 1999. The previously announced planets iota Drab and Pollux b are confirmed by continued monitoring. The frequency of detected planetary companions appears to increase with metallicity. The star v Oph is orbited by two brown dwarf companions with masses of 22.3 M-Jup and 24.5 M-Jup in orbits with a period ratio close to 6:1. It is likely that the two companions to v Oph formed in a disk around the star.
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收藏
页码：102 / 109
页数：8
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