The ELODIE survey for northern extra-solar planets - III. Three planetary candidates detected with ELODIE

被引：92
|
作者：
Naef, D
Mayor, M
Beuzit, JL
Perrier, C
Queloz, D
Sivan, JP
Udry, S
机构：
[1] Observ Geneva, CH-1290 Sauverny, Switzerland
[2] Univ Grenoble 1, Observ Grenoble, Astrophys Lab, F-38041 Grenoble, France
[3] Observ Haute Provence, F-04870 St Michel, France
来源：
ASTRONOMY & ASTROPHYSICS | 2004年 / 414卷 / 01期
关键词：
techniques : radial velocities; planetary systems;
D O I：
10.1051/0004-6361:20034091
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present our ELODIE radial-velocity measurements of HD74156 and 14Her (HD 145675). These stars exhibit low-amplitude radial-velocity variations induced by the presence of low-mass companions. The radial-velocity data of HD74156 reveal the presence of two planetary companions: a 1.86 M-Jup planet on a 51.64-d orbit and a 6.2 M-Jup planet on a long-period (similar or equal to5.5 yr) orbit. Both orbits are fairly eccentric (e=0.64 and 0.58). The 4.7 M-Jup companion to 14Her has a long period (4.9 yr) and a moderately eccentric orbit (e=0.34). We detect an additional linear radial-velocity trend superimposed on the periodic signal for this star. We also compute updated orbital solutions for HD 209458 and 51 Peg (HD 217014). Finally, we present our ELODIE radial-velocity data and orbital solutions for 5 stars known to host planetary companions: Ups And (HD 9826), 55 Cnc (HD 75732), 47 UMa (HD 95128), 70 Vir (HD 117176) and HD 187123. We confirm the previously published orbital solutions for Ups And, 70 Vir and HD 187123. Our data are not sufficient to fully confirm the orbital solutions for 55 Cnc and 47 UMa.
引用
收藏
页码：351 / 359
页数：9
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