Giant planet companion to 2MASSW J1207334-393254

被引：240
作者：
Chauvin, G
Lagrange, AM
Dumas, C
Zuckerman, B
Mouillet, D
Song, I
Beuzit, JL
Lowrance, P
机构：
[1] European So Observ, Santiago 19, Chile
[2] Observ Grenoble, Astrophys Lab, St Martin Dheres, France
[3] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA
[4] Univ Calif Los Angeles, Ctr Astrobiol, Los Angeles, CA 90095 USA
[5] Observ Midi Pyrenees, Astrophys Lab, Tarbes, France
[6] Ctr Infrared Proc & Anal, Spitzer Sci Ctr, Pasadena, CA 91125 USA
来源：
ASTRONOMY & ASTROPHYSICS | 2005年 / 438卷 / 02期
关键词：
D O I：
10.1051/0004-6361:200500116
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report new VLT/ NACO imaging observations of the young, nearby brown dwarf 2MASSWJ1207334-393254 and its suggested planetary mass companion (2M1207b). Three epochs of VLT VLT/ NACO measurements obtained over nearly one year show that the planetary mass companion candidate shares the same proper motion and, with a high confidence level, is not a stationary background object. This result confirms the status of 2M1207 b as of planetary mass ( 5 times the mass of Jupiter) and the first image of a planetary mass companion in a different system than our own. This discovery offers new perspectives for our understanding of chemical and physical properties of planetary mass objects as well as their mechanisms of formation.
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收藏
页码：L25 / L28
页数：4
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