Transiting exoplanets from the CoRoT space mission: XV. CoRoT-15b: A brown-dwarf transiting companion

F. Bouchy; M. Deleuil; T. Guillot; S. Aigrain; L. Carone; W. D. Cochran; J. M. Almenara; R. Alonso; M. Auvergne; A. Baglin; P. Barge; A. S. Bonomo; P. Bordé; Sz Csizmadia; K. De Bondt; H. J. Deeg; R. F. Díaz; R. Dvorak; M. Endl; A. Erikson; S. Ferraz-Mello; M. Fridlund; D. Gandolfi; J. C. Gazzano; N. Gibson; M. Gillon; E. Guenther; A. Hatzes; M. Havel; G. Hébrard; L. Jorda; A. Léger; C. Lovis; A. Llebaria; H. Lammer; P. J. MacQueen; T. Mazeh; C. Moutou; A. Ofir; M. Ollivier; H. Parviainen; M. Pätzold; D. Queloz; H. Rauer; D. Rouan; A. Santerne; J. Schneider; B. Tingley; G. Wuchterl

Transiting exoplanets from the CoRoT space mission: XV. CoRoT-15b: A brown-dwarf transiting companion

F. Bouchy, M. Deleuil, T. Guillot, S. Aigrain, L. Carone, W. D. Cochran, J. M. Almenara, R. Alonso, M. Auvergne, A. Baglin, P. Barge, A. S. Bonomo, P. Bordé, Sz Csizmadia, K. De Bondt, H. J. Deeg, R. F. Díaz, R. Dvorak, M. Endl, A. EriksonS. Ferraz-Mello, M. Fridlund, D. Gandolfi, J. C. Gazzano, N. Gibson, M. Gillon, E. Guenther, A. Hatzes, M. Havel, G. Hébrard, L. Jorda, A. Léger, C. Lovis, A. Llebaria, H. Lammer, P. J. MacQueen, T. Mazeh, C. Moutou, A. Ofir, M. Ollivier, H. Parviainen, M. Pätzold, D. Queloz, H. Rauer, D. Rouan, A. Santerne, J. Schneider, B. Tingley, G. Wuchterl

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We report the discovery by the CoRoT space mission of a transiting brown dwarf orbiting a F7V star with an orbital period of 3.06 days. CoRoT-15b has a radius of 1.12^+0.30_-0.15 R_Jup and a mass of 63.3 ± 4.1 M_Jup, and is thus the second transiting companion lying in the theoretical mass domain of brown dwarfs. CoRoT-15b is either very young or inflated compared to standard evolution models, a situation similar to that of M-dwarf stars orbiting close to solar-typestars. Spectroscopic constraints and an analysis of the lightcurve imply a spin period in the range 2.9-3.1 days for the central star, which is compatible with a double-synchronisation of the system.

Original language	English
Article number	A68
Journal	Astronomy and Astrophysics
Volume	525
Issue number	19
State	Published - Jan 2011

Keywords

Brown dwarfs
Planetary systems
Stars: low-mass
Techniques: photometric
Techniques: radial velocities
Techniques: spectroscopic

Cite this

Bouchy, F., Deleuil, M., Guillot, T., Aigrain, S., Carone, L., Cochran, W. D., Almenara, J. M., Alonso, R., Auvergne, M., Baglin, A., Barge, P., Bonomo, A. S., Bordé, P., Csizmadia, S., De Bondt, K., Deeg, H. J., Díaz, R. F., Dvorak, R., Endl, M., ... Wuchterl, G. (2011). Transiting exoplanets from the CoRoT space mission: XV. CoRoT-15b: A brown-dwarf transiting companion. Astronomy and Astrophysics, 525(19), [A68].

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title = "Transiting exoplanets from the CoRoT space mission: XV. CoRoT-15b: A brown-dwarf transiting companion",

abstract = "We report the discovery by the CoRoT space mission of a transiting brown dwarf orbiting a F7V star with an orbital period of 3.06 days. CoRoT-15b has a radius of 1.12+0.30-0.15 RJup and a mass of 63.3 ± 4.1 MJup, and is thus the second transiting companion lying in the theoretical mass domain of brown dwarfs. CoRoT-15b is either very young or inflated compared to standard evolution models, a situation similar to that of M-dwarf stars orbiting close to solar-typestars. Spectroscopic constraints and an analysis of the lightcurve imply a spin period in the range 2.9-3.1 days for the central star, which is compatible with a double-synchronisation of the system.",

keywords = "Brown dwarfs, Planetary systems, Stars: low-mass, Techniques: photometric, Techniques: radial velocities, Techniques: spectroscopic",

author = "F. Bouchy and M. Deleuil and T. Guillot and S. Aigrain and L. Carone and Cochran, {W. D.} and Almenara, {J. M.} and R. Alonso and M. Auvergne and A. Baglin and P. Barge and Bonomo, {A. S.} and P. Bord{\'e} and Sz Csizmadia and {De Bondt}, K. and Deeg, {H. J.} and D{\'i}az, {R. F.} and R. Dvorak and M. Endl and A. Erikson and S. Ferraz-Mello and M. Fridlund and D. Gandolfi and Gazzano, {J. C.} and N. Gibson and M. Gillon and E. Guenther and A. Hatzes and M. Havel and G. H{\'e}brard and L. Jorda and A. L{\'e}ger and C. Lovis and A. Llebaria and H. Lammer and MacQueen, {P. J.} and T. Mazeh and C. Moutou and A. Ofir and M. Ollivier and H. Parviainen and M. P{\"a}tzold and D. Queloz and H. Rauer and D. Rouan and A. Santerne and J. Schneider and B. Tingley and G. Wuchterl",

year = "2011",

month = jan,

language = "אנגלית",

volume = "525",

journal = "Astronomy and Astrophysics",

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Bouchy, F, Deleuil, M, Guillot, T, Aigrain, S, Carone, L, Cochran, WD, Almenara, JM, Alonso, R, Auvergne, M, Baglin, A, Barge, P, Bonomo, AS, Bordé, P, Csizmadia, S, De Bondt, K, Deeg, HJ, Díaz, RF, Dvorak, R, Endl, M, Erikson, A, Ferraz-Mello, S, Fridlund, M, Gandolfi, D, Gazzano, JC, Gibson, N, Gillon, M, Guenther, E, Hatzes, A, Havel, M, Hébrard, G, Jorda, L, Léger, A, Lovis, C, Llebaria, A, Lammer, H, MacQueen, PJ, Mazeh, T, Moutou, C, Ofir, A, Ollivier, M, Parviainen, H, Pätzold, M, Queloz, D, Rauer, H, Rouan, D, Santerne, A, Schneider, J, Tingley, B & Wuchterl, G 2011, 'Transiting exoplanets from the CoRoT space mission: XV. CoRoT-15b: A brown-dwarf transiting companion', Astronomy and Astrophysics, vol. 525, no. 19, A68.

TY - JOUR

T1 - Transiting exoplanets from the CoRoT space mission

T2 - XV. CoRoT-15b: A brown-dwarf transiting companion

AU - Bouchy, F.

AU - Deleuil, M.

AU - Guillot, T.

AU - Aigrain, S.

AU - Carone, L.

AU - Cochran, W. D.

AU - Almenara, J. M.

AU - Alonso, R.

AU - Auvergne, M.

AU - Baglin, A.

AU - Barge, P.

AU - Bonomo, A. S.

AU - Bordé, P.

AU - Csizmadia, Sz

AU - De Bondt, K.

AU - Deeg, H. J.

AU - Díaz, R. F.

AU - Dvorak, R.

AU - Endl, M.

AU - Erikson, A.

AU - Ferraz-Mello, S.

AU - Fridlund, M.

AU - Gandolfi, D.

AU - Gazzano, J. C.

AU - Gibson, N.

AU - Gillon, M.

AU - Guenther, E.

AU - Hatzes, A.

AU - Havel, M.

AU - Hébrard, G.

AU - Jorda, L.

AU - Léger, A.

AU - Lovis, C.

AU - Llebaria, A.

AU - Lammer, H.

AU - MacQueen, P. J.

AU - Mazeh, T.

AU - Moutou, C.

AU - Ofir, A.

AU - Ollivier, M.

AU - Parviainen, H.

AU - Pätzold, M.

AU - Queloz, D.

AU - Rauer, H.

AU - Rouan, D.

AU - Santerne, A.

AU - Schneider, J.

AU - Tingley, B.

AU - Wuchterl, G.

PY - 2011/1

Y1 - 2011/1

N2 - We report the discovery by the CoRoT space mission of a transiting brown dwarf orbiting a F7V star with an orbital period of 3.06 days. CoRoT-15b has a radius of 1.12+0.30-0.15 RJup and a mass of 63.3 ± 4.1 MJup, and is thus the second transiting companion lying in the theoretical mass domain of brown dwarfs. CoRoT-15b is either very young or inflated compared to standard evolution models, a situation similar to that of M-dwarf stars orbiting close to solar-typestars. Spectroscopic constraints and an analysis of the lightcurve imply a spin period in the range 2.9-3.1 days for the central star, which is compatible with a double-synchronisation of the system.

AB - We report the discovery by the CoRoT space mission of a transiting brown dwarf orbiting a F7V star with an orbital period of 3.06 days. CoRoT-15b has a radius of 1.12+0.30-0.15 RJup and a mass of 63.3 ± 4.1 MJup, and is thus the second transiting companion lying in the theoretical mass domain of brown dwarfs. CoRoT-15b is either very young or inflated compared to standard evolution models, a situation similar to that of M-dwarf stars orbiting close to solar-typestars. Spectroscopic constraints and an analysis of the lightcurve imply a spin period in the range 2.9-3.1 days for the central star, which is compatible with a double-synchronisation of the system.

KW - Brown dwarfs

KW - Planetary systems

KW - Stars: low-mass

KW - Techniques: photometric

KW - Techniques: radial velocities

KW - Techniques: spectroscopic

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AN - SCOPUS:79951499656

VL - 525

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

IS - 19

M1 - A68

ER -

Transiting exoplanets from the CoRoT space mission: XV. CoRoT-15b: A brown-dwarf transiting companion

Abstract

Keywords

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