The CHEOPS view of the climate of WASP-3 b | Astronomy & Astrophysics (A&A)

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Volume 692 (December 2024)

A&A, 692 (2024) A129

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Table 6

Mass and radius estimates for WASP-3 and WASP-3 b as inferred from the transit observables.

Parameter	Units	Value	Error
Input values
P	(d)	1.8468354
M_⋆	(M_⊙)	1.236	± 0.040
K_RV	(m s⁻¹)	259	±7
e		0 (fixed)
sini		0.9951	± 0.0004
R_pl/R_⋆		0.10503	± 0.00027
a/R_⋆		5.108	± 0.043

Derived quantities

R_⋆	(R_⊙)	1.332	± 0.018
M_pl	(M_Jup)	1.811	± 0.063
R_pl	(R_Jup)	1.392	± 0.019
g_pl	(m s⁻²)	24.2	± 0.8
ρ_pl	(g cm⁻³)	0.891	± 0.035
T₄−T₁	(d)	0.114	± 0.002
T₃ − T₂	(d)	0.085	± 0.002
$T_{irr} = T_{eff} \sqrt{\frac{R_{⋆}}{a}}$ ${{\rm{T}}_{{\rm{irr}}}} = {{\rm{T}}_{{\rm{eff}}}}\sqrt {{{{R_ \star }} \over a}}$	(K)	2850	± 50

Notes. R_Jup = 69911 km is the volume-average radius of Jupiter. T₄ − T₁ and T₃ − T₂ are the time intervals between the contact points of the primary eclipse (transit).

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