SIMBAD references

2013A&A...553A..30T - Astronomy and Astrophysics, volume 553A, 30-30 (2013/5-1)

CoRoT 101186644: a transiting low-mass dense M-dwarf on an eccentric 20.7-day period orbit around a late F-star. Discovered in the CoRoT lightcurves.

TAL-OR L., MAZEH T., ALONSO R., BOUCHY F., CABRERA J., DEEG H.J., DELEUIL M., FAIGLER S., FRIDLUND M., HEBRARD G., MOUTOU C., SANTERNE A. and TINGLEY B.

Abstract (from CDS):

We present the study of the CoRoT transiting planet candidate 101186644, also named LRc01E14780. Analysis of the CoRoT lightcurve and the HARPS spectroscopic follow-up observations of this faint (mV = 16) candidate revealed an eclipsing binary composed of a late F-type primary (Teff=6090±200K) and a low-mass, dense late M-dwarf secondary on an eccentric (e=0.4) orbit with a period of ∼20.7 days. The M-dwarf has a mass of 0.096±0.011M☉, and a radius of 0.104–0.006+0.026R☉, which possibly makes it the smallest and densest late M-dwarf reported so far. Unlike the claim that theoretical models predict radii that are 5-15% smaller than measured for low-mass stars, this one seems to have a radius that is consistent and might even be below the radius predicted by theoretical models.

Abstract Copyright: ∼

Journal keyword(s): planetary systems - stars: individual: CoRoT 101186644 - binaries: eclipsing - techniques: photometric - techniques: radial velocities

Simbad objects: 11

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