Transiting exoplanets from the CoRoT space mission - XXVIII. CoRoT-33b, an object in the brown dwarf desert with 2:3 commensurability with its host star

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Volume 584 (December 2015)

A&A, 584 (2015) A13

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Table 1

Basic data of known transiting brown dwarfs.

Name	M _star / M _⊙	R _star / R _⊙	T_star [K]	[Fe/H]	P (days)	e	M _BD / M _Jup	R _BD / R _Jup	ρ [g/cm³]	Ref.

2M0535-05a^a					9.779621(42)	0.3225 ± 0.0060	56.7 ± 4.8	6.5 ± 0.33	0.26 ± 0.06	1
2M0535-05b^a					9.779621(42)	0.3225 ± 0.0060	35.6 ± 2.8	5.0 ± 0.25	0.35 ± 0.08	1
CoRoT-3b	1.37 ± 0.09	1.56 ± 0.09	6740 ± 140	−0.02 ± 0.06 ^b	4.25680(5)	0.0	21.66 ± 1.0	1.01 ± 0.07	26.4 ± 5.6	2
CoRoT-15b	1.32 ± 0.12		6350 ± 200	+0.1 ± 0.2	3.06036(3)	0	63.3 ± 4.1		59 ± 29	3
CoRoT-33b	0.86 ± 0.04		5225 ± 80	+0.44 ± 0.10	5.819143(18)	0.0700 ± 0.0016		1.10 ± 0.53	55 ± 27	4
KELT-1b	1.335 ± 0.063		6516 ± 49	+0.052 ± 0.079	1.217513(15)		27.38 ± 0.93			5
Kepler-39b^c			6260 ± 140	−0.29 ± 0.10	21.0874(2)				12.40	6
Kepler-39b^c		1.40 ± 0.10	6350 ± 100	+0.10 ± 0.14	21.087210(37)	0.112 ± 0.057			13.0	7
KOI-189b^d	0.764 ± 0.051	0.733 ± 0.017	4952 ± 40	−0.07 ± 0.12	30.3604467(5)	0.2746 ± 0.0037	78.0 ± 3.4	0.998 ± 0.023	97.3 ± 4.1	8
KOI-205b	0.925 ± 0.033	0.841 ± 0.020	5237 ± 60	+0.14 ± 0.12	11.7201248(21)	<0.031	39.9 ± 1.0	0.807 ± 0.022	75.6 ± 5.2	9
KOI-205b		0.87 ± 0.020	5400 ± 75	+0.18 ± 0.12	11.720126(11)	<0.015		0.82 ± 0.02	90.9	6
KOI-415b	0.94 ± 0.06		5810 ± 80	−0.24 ± 0.11	166.78805(22)	0.698 ± 0.002	62.14 ± 2.69		157.4	10
LHS 6343C^e	0.370 ± 0.009	0.378 ± 0.008	3130 ± 20	+0.04 ± 0.08	12.71382(4)	0.056 ± 0.032	62.7 ± 2.4	0.833 ± 0.021	109 ± 8	11
WASP-30b	1.166 ± 0.026	1.295 ± 0.019	6201 ± 97	−0.08 ± 0.10	4.156736(13)	0	60.96 ± 0.89	0.889 ± 0.021	107.6 ± 1.1	12

Notes. ρ is the mean density of the brown dwarf component.

^(a)

2M0535-05 is an extreme young eclipsing system in which two brown dwarfs orbit each other.

^(b)

[M/H] value is reported in the reference. Notice that [M/H] ≊ [Fe/H]; we did not convert the inhomogeneous [Fe/H] to the same scale.

^(c)

aka KOI-423b.

^(d)

Díaz et al. (2014) concluded that KOI-189b can be either a high-mass brown dwarf or a very low mass star, too, therefore its status is uncertain.

^(e)

The brown dwarf orbits companion A of a binary system, and data of the component A is given here. Star B has M = 0.30 ± 0.01M_⊙, T_eff = 3030 ± 30 K (Johnson et al. 2011).

Reference. 1: Stassun et al. (2006); 2: Deleuil et al. (2008); 3: Bouchy et al. (2011a); 4: this study; 5: Siverd et al. (2012); 6: Bouchy et al. (2011b); 7: Bonomo et al. (2015); 8: Díaz et al. (2014); 9: Díaz et al. (2013); 10: Moutou et al. (2013); 11: Johnson et al. (2011); 12: Anderson et al. (2011).

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