SIMBAD references

2016ApJ...821L..15K - Astrophys. J., 821, L15-L15 (2016/April-2)

The nearest isolated member of the TW Hydrae association is a giant planet analog.


Abstract (from CDS):

In a recent search for unusually red L and T dwarfs, we identified 2MASS J11193254-1137466 as a likely young L7 dwarf and potential member of the TW Hydrae association. We present spectra that confirm the youth of this object. We also measure a radial velocity of 8.5 ± 3.3 km s-1 that, together with the sky position, proper motion, and photometric distance, results in a 92% probability of membership in the TW Hydrae association, with a calibrated field contamination probability of 0.0005% using the BANYAN II tool. Using the age of TW Hydrae and the luminosity of 2MASS J11193254-1137466, we estimate its mass to be 4.3-7.6 {M}_Jup. It is the lowest-mass and nearest isolated member of TW Hydrae at a kinematic distance of 28.9 ± 3.6 pc, and the second-brightest isolated <10 {M}_Jup object discovered to date.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): brown dwarfs - open clusters and associations: individual: TW Hydrae - stars: individual: 2MASS J111932541137466 - techniques: radial velocities

Simbad objects: 13

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