SIMBAD references

2010ApJ...715L.165R - Astrophys. J., 715, L165-L170 (2010/June-1)

The lowest-mass member of the β Pictoris moving group.

RICE E.L., FAHERTY J.K. and CRUZ K.L.

Abstract (from CDS):

We present spectral and kinematic evidence that 2MASS J06085283-2753583 (M8.5γ) is a member of the β 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 MJup, 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.

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Journal keyword(s): brown dwarfs - infrared: stars - open clusters and associations: individual: β Pictoris - stars: individual: 2MASS J06085283-2753583 - stars: late-type - techniques: spectroscopic

Simbad objects: 25

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