Journal
ASTRONOMY & ASTROPHYSICS
Volume 438, Issue 2, Pages L25-L28Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361:200500116
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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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