Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2010-05-12
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
Accepted to ApJL, 17 pages, including 3 figures and 2 tables
Scientific paper
10.1088/2041-8205/715/2/L165
We present spectral and kinematic evidence that 2MASS J06085283-2753583 (M8.5gamma) is a member of the beta Pictoris Moving Group (BPMG, age ~12 Myr), making it the latest-type known member of this young, nearby association. We confirm low-gravity spectral morphology at both medium and high resolutions in the near-infrared. We present new radial velocity and proper motion measurements and use these to calculate galactic location and space motion consistent with other high-probability members of the BPMG. The predicted mass range consistent with the object's effective temperature, surface gravity, spectral type, and age is 15-35 M_Jup, placing 2MASS 0608-27 well within the brown dwarf mass regime. 2MASS J06085283-2753583 is thus confidently added to the short list of very low mass, intermediate age benchmark objects that inform ongoing searches for the lowest-mass members of nearby young associations.
Cruz Kelle L.
Faherty Jacqueline K.
Rice Emily L.
No associations
LandOfFree
The Lowest Mass Member of the beta Pictoris Moving Group does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Lowest Mass Member of the beta Pictoris Moving Group, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Lowest Mass Member of the beta Pictoris Moving Group will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-639704