A transiting extrasolar giant planet around the star OGLE-TR-10

被引：86
|
作者：
Konacki, M
Torres, G
Sasselov, DD
Jha, S
机构：
[1] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA
[2] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[3] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA
来源：
ASTROPHYSICAL JOURNAL | 2005年 / 624卷 / 01期
关键词：
line : profiles; planetary systems; stars : evolution; stars : individual (OGLE-TR-10); techniques : radial velocities;
D O I：
10.1086/429127
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report a transiting extrasolar giant planet around the star OGLE-TR-10 (orbital period = 3.1 days), which was uncovered as a candidate by the OGLE team in their photometric survey toward the Galactic center. We observed OGLE-TR- 10 spectroscopically over a period of 2 yr ( 2002 - 2004), using the HIRES instrument with an iodine cell on the Keck I telescope, and measured small radial velocity variations that are consistent with the presence of a planetary companion. This confirms the earlier identification of OGLE-TR- 10b by our team and also recently by Bouchy and coworkers as a possible planet. In addition, in this paper we are able to rule out a blend scenario as an alternative explanation. From an analysis combining all available radial velocity measurements with the OGLE light curve, we find that OGLE-TR- 10b has a mass of 0.57 +/- 0.12M(J) and a radius of 1.24 +/- 0.09R(J). These parameters bear close resemblance to those of the first known transiting extrasolar planet, HD 209458b.
引用
收藏
页码：372 / 377
页数：6
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