TY - JOUR
T1 - CoRoT 101186644
T2 - 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
AU - Tal-Or, L.
AU - Mazeh, T.
AU - Alonso, R.
AU - Bouchy, F.
AU - Cabrera, J.
AU - Deeg, H. J.
AU - Deleuil, M.
AU - Faigler, S.
AU - Fridlund, M.
AU - Hébrard, G.
AU - Moutou, C.
AU - Santerne, A.
AU - Tingley, B.
N1 - Funding Information:
We thank Gil Sokol for his help with the lightcurve analysis. We also thank the anonymous referee and the editor for their fruitful comments and suggestions. The CoRoT space mission, launched on 2006 December 27, was developed and is operated by the CNES, with participation of the Science Programs of ESA, ESA’s RSSD, Austria, Belgium, Brazil, Germany, and Spain. Some of the data presented were acquired with the IAC80 telescope operated at Teide Observatory on the island of Tenerife by the Instituto de Astrofísica de Canarias. The research leading to these results has received funding from the European Research Council under the EU’s Seventh Framework Program (FP7/(2007-2013)/ ERC Grant Agreement No. 291352). This research was also supported by the Israel Science Foundation (grant No. 1423/11). The IAC team acknowledges support by grant AYA2010-20982-C02-02 of the Spanish Ministerio de Economía y Competividad. We also acknowledge support from the French National Research Agency (ANR-08-JCJC-0102-01).
PY - 2013
Y1 - 2013
N2 - We present the study of the CoRoT transiting planet candidate 101186644, also named LRc01-E1-4780. 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 (T eff = 6090 ± 200 K) and a low-mass, dense late M-dwarf secondary on an eccentric (e = 0.4) orbit with a period of ∼days. The M-dwarf has a mass of 0.096 ± 0.011 M⊙, and a radius of 0.104-0.006+0.026 R⊙, 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.
AB - We present the study of the CoRoT transiting planet candidate 101186644, also named LRc01-E1-4780. 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 (T eff = 6090 ± 200 K) and a low-mass, dense late M-dwarf secondary on an eccentric (e = 0.4) orbit with a period of ∼days. The M-dwarf has a mass of 0.096 ± 0.011 M⊙, and a radius of 0.104-0.006+0.026 R⊙, 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.
KW - Binaries: eclipsing
KW - Planetary systems
KW - Stars: individual: CoRoT 101186644
KW - Techniques: photometric
KW - Techniques: radial velocities
UR - https://www.scopus.com/pages/publications/84876845482
U2 - 10.1051/0004-6361/201220862
DO - 10.1051/0004-6361/201220862
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:84876845482
SN - 0004-6361
VL - 553
JO - Astronomy and Astrophysics
JF - Astronomy and Astrophysics
M1 - A30
ER -