SIMBAD references

2011ApJ...730...79J - Astrophys. J., 730, 79 (2011/April-1)

LHS 6343 C: a transiting field brown dwarf discovered by the Kepler mission.

JOHNSON J.A., APPS K., GAZAK J.Z., CREPP J.R., CROSSFIELD I.J., HOWARD A.W., MARCY G.W., MORTON T.D., CHUBAK C. and ISAACSON H.

Abstract (from CDS):

We report the discovery of a brown dwarf that transits one member of the M+M binary system LHS 6343 AB every 12.71 days. The transits were discovered using photometric data from the Kepler public data release. The LHS 6343 stellar system was previously identified as a single high proper motion M dwarf. We use adaptive optics imaging to resolve the system into two low-mass stars with masses 0.370±0.009 M and 0.30±0.01 M, respectively, and a projected separation of 0".55. High-resolution spectroscopy shows that the more massive component undergoes Doppler variations consistent with Keplerian motion, with a period equal to the transit period and an amplitude consistent with a companion mass of MC= 62.7±2.4 MJup. Based on our analysis of the transit light curve, we estimate the radius of the companion to be RC= 0.833±0.021 RJup, which is consistent with theoretical predictions of the radius of a >1 Gyr brown dwarf.

Abstract Copyright:

Journal keyword(s): binaries: eclipsing - binaries: spectroscopic - brown dwarfs - stars: fundamental parameters - stars: low-mass - techniques: photometric - techniques: radial velocities

Simbad objects: 15

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2020.11.25-13:05:31

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