HD80606 b, a planet on an extremely elongated orbit

被引：182

作者：

Naef, D

Latham, DW

Mayor, M

Mazeh, T

Beuzit, JL

Drukier, GA

Perrier-Bellet, C

Queloz, D

Sivan, JP

Torres, G

Udry, S

Zucker, S

机构：

[1] Observ Geneva, CH-1290 Sauverny, Switzerland

[2] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[3] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

[4] Univ Grenoble 1, Observ Grenoble, Astrophys Lab, F-38041 Grenoble, France

[5] Observ Haute Provence, F-04870 St Michel, France

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 375卷 / 02期

关键词：

techniques : radial velocities; stars : individuals : HD 80606; stars : individuals : HD 80607; binaries : visual; extrasolar planets;

D O I：

10.1051/0004-6361:20010853

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the detection of a planetary companion orbiting the solar-type star HD80606, 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.

引用

页码：L27 / L30

页数：4

共 37 条

[1] DYNAMICS OF BINARY AND PLANETARY-SYSTEM INTERACTION WITH DISKS - ECCENTRICITY CHANGES [J].