SIMBAD references

2013A&A...551L...9D - Astronomy and Astrophysics, volume 551, L9-9 (2013/3-1)

SOPHIE velocimetry of Kepler transit candidates. VIII. KOI-205 b: a brown-dwarf companion to a K-type dwarf.

DIAZ R.F., DAMIANI C., DELEUIL M., ALMENARA J.M., MOUTOU C., BARROS S.C.C., BONOMO A.S., BOUCHY F., BRUNO G., HEBRARD G., MONTAGNIER G. and SANTERNE A.

Abstract (from CDS):

We report the discovery of a transiting brown dwarf companion to 05, a K0 main-sequence star, in a 11.720125-day period orbit. The transits were detected by the Kepler space telescope, and the reflex motion of the star was measured using radial velocity observations obtained with the SOPHIE spectrograph. The atmospheric parameters of the host stars were determined from the analysis of high-resolution, high signal-to-noise ratio ESPaDOns spectra obtained for this purpose. Together with spectrophotometric measurements recovered from the literature, these spectra indicate that the star is a mildly metallic K0 dwarf with Teff 5237±60K. The mass of the companion is 39.9±1.0MJup and its radius is 0.81±0.02RJup, in agreement with current theoretical predictions. This is the first time a bona fide brown dwarf companion is detected in orbit around a star of this type. The formation and orbital evolution of brown dwarf companions is briefly discussed in the light of this new discovery.

Abstract Copyright:

Journal keyword(s): techniques: radial velocities - techniques: photometric - brown dwarfs - stars: individual: KIC7046804

Status at CDS:  

CDS comments: LHC 6343C is a misprint for LHS 6343C.

Simbad objects: 17

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2020.06.02-16:50:25

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