Title of article
The ELODIE survey for northern extra-solar planets - II. A Jovian planet on a longperiod orbit around GJ 777 A
Author/Authors
Udry، S. نويسنده , , C. Perrier، نويسنده , , D. Naef، نويسنده , , L. Beuzit، J. نويسنده , , M. Mayor، نويسنده , , D. Queloz، نويسنده , , G. Korzennik، S. نويسنده , , P. Nisenson، نويسنده , , W. Noyes، R. نويسنده , , M. Brown، T. نويسنده , , P. Sivan، J. نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
-1050
From page
1051
To page
0
Abstract
We present radial-velocity measurements obtained with the ELODIE and AFOE spectrographs for GJ 777 A ( HD 190360 ), a metal-rich ( [Fe/H ] = 0.25) nearby ( d = 15.9 pc) star in a stellar binary system. A long-period low radial-velocity amplitude variation is detected revealing the presence of a Jovian planetary companion. Some of the orbital elements remain weakly constrained because of the smallness of the signal compared to our instrumental precision. The detailed orbital shape is therefore not well established. We present our best fitted orbital solution: an eccentric ( e = 0.48) 10.7-year orbit. The minimum mass of the companion is 1.33 M(Jup).
Keywords
techniques: radial velocities , stars: individual: HD 190360 , stars: individual: GJ 777 A , stars: planetary systems
Journal title
Astronomy and Astrophysics
Serial Year
2003
Journal title
Astronomy and Astrophysics
Record number
76898
Link To Document