TESS phase curve of ultra-hot Jupiter WASP-189 b | Astronomy & Astrophysics (A&A)

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Table A.1

Planetary and stellar parameters used in the light curve analysis.

Parameters	Symbols	Values	Priors	Units
Planetary parameters
Orbital period	P	${2.72403}_{- 2.28439 \times 10^{- 5}}^{+ 2.34875 \times 10^{- 5}}$ $\[2.72403_{-2.28439 \times 10^{-5}}^{+2.34875 \times 10^{-5}}\]$	𝒩(2.72402, 3.1828 × 10⁻⁵)	days
Transit time	T₀	${2459691.99424}_{- 0.00017}^{+ 0.00017}$ $\[2459691.99424_{-0.00017}^{+0.00017}\]$	𝒩(2459691.99555, 0.0078935)	BJD
Planet-to-star radius ratio	R_p/R_⋆	${0.06903}_{- 0.00020}^{+ 0.00020}$ $\[0.06903_{-0.00020}^{+0.00020}\]$	𝒰(0.065, 0.080)	−
Impact parameter	b	${0.433}_{- 0.012}^{+ 0.013}$ $\[0.433_{-0.012}^{+0.013}\]$	𝒩(0.433, 0.020)	−
Scaled semi-major axis	a/R_⋆	${4.583}_{- 0.030}^{+ 0.028}$ $\[4.583_{-0.030}^{+0.028}\]$	𝒩(4.587, 0.050)	−
Eccentricity	e	0	Fixed	−
Argument of periastron passage	ω	90	Fixed	deg
Projected orbital obliquity	λ_p	${91.58}_{- 1.14}^{+ 1.14}$ $\[91.58_{-1.14}^{+1.14}\]$	𝒩(91.7, 1.2)	deg
	E	${203.4}_{- 16.3}^{+ 16.2}$ $\[203.4_{-16.3}^{+16.2}\]$	𝒰(0, 500)	ppm
Phase curve parameters	C₁	${137.8}_{- 17.1}^{+ 17.0}$ $\[137.8_{-17.1}^{+17.0}\]$	𝒰(−10⁶, 10⁶)	ppm
Phase curve parameters	D₁	$- {23.6}_{- 16.6}^{+ 16.4}$ $\[-23.6_{-16.6}^{+16.4}\]$	𝒰(−10⁶, 10⁶)	ppm
	C₂	0	Fixed	ppm
	D₂	0	Fixed	ppm

Stellar parameters
Stellar mass	M_⋆	${2.054}_{- 0.087}^{+ 0.089}$ $\[2.054_{-0.087}^{+0.089}\]$	𝒩(2.031, 0.098)	M_⊙
Stellar radius	R_⋆	${2.369}_{- 0.024}^{+ 0.023}$ $\[2.369_{-0.024}^{+0.023}\]$	𝒩(2.365, 0.025)	R_⊙
Pole temperature	T_pole	${7999.24}_{- 74.96}^{+ 75.52}$ $\[7999.24_{-74.96}^{+75.52}\]$	𝒩(8000, 80)	K
Projected rotation period	v sin i_⋆	${91.70}_{- 2.23}^{+ 2.15}$ $\[91.70_{-2.23}^{+2.15}\]$	𝒩(92.5, 2.5)	km/s
Stellar obliquity	ϕ_⋆	${21.58}_{- 1.54}^{+ 1.43}$ $\[21.58_{-1.54}^{+1.43}\]$	𝒩(21.8, 1.6)	deg
Gravity darkening coefficient	β	0.22	Fixed	−
Limb darkening coefficients
Kipping (2013) parametrisation	q_{1_TESS}	${0.177}_{- 0.027}^{+ 0.029}$ $\[0.177_{-0.027}^{+0.029}\]$	𝒰(0, 1)	−
Kipping (2013) parametrisation	q_{2_TESS}	${0.307}_{- 0.081}^{+ 0.091}$ $\[0.307_{-0.081}^{+0.091}\]$	𝒰(0, 1)	−

Derived parameters
Stellar inclination	i_⋆	${68.42}_{- 1.43}^{+ 1.54}$ $\[68.42_{-1.43}^{+1.54}\]$	−	deg
Stellar oblateness	f_⋆	${2.86}_{- 0.17}^{+ 0.18}$ $\[2.86_{-0.17}^{+0.18}\]$	−	%
Stellar rotation period	P_⋆	${1.22}_{- 0.03}^{+ 0.03}$ $\[1.22_{-0.03}^{+0.03}\]$	−	d
Limb darkening coefficients
Quadratic coefficients	u_{1_TESS}	${0.258}_{- 0.056}^{+ 0.055}$ $\[0.258_{-0.056}^{+0.055}\]$	−	−
Quadratic coefficients	u_{2_TESS}	${0.162}_{- 0.083}^{+ 0.086}$ $\[0.162_{-0.083}^{+0.086}\]$	−	−
Spin-orbit angle	Ψ	${89.46}_{- 1.08}^{+ 1.08}$ $\[89.46_{-1.08}^{+1.08}\]$	−	deg
Orbital inclination	i_p	${84.58}_{- 0.20}^{+ 0.19}$ $\[84.58_{-0.20}^{+0.19}\]$	−	deg
Planetary radius	R_p	${1.591}_{- 0.016}^{+ 0.015}$ $\[1.591_{-0.016}^{+0.015}\]$	−	R_jup
Semi-major axis	a	${0.0505}_{- 0.0006}^{+ 0.0005}$ $\[0.0505_{-0.0006}^{+0.0005}\]$	−	AU
Occultation depth	F_d/F_⋆	${203.4}_{- 16.3}^{+ 16.2}$ $\[203.4_{-16.3}^{+16.2}\]$	−	ppm
Nightside flux	F_n/F_⋆	$- {71.8}_{- 36.0}^{+ 36.4}$ $\[-71.8_{-36.0}^{+36.4}\]$	−	ppm
Phase offset	ϕ_off	$- {9.78}_{- 6.82}^{+ 6.81}$ $\[-9.78_{-6.82}^{+6.81}\]$	−	deg

Notes. The Gaussian priors with mean μ and variance σ² are displayed as 𝒩(μ, σ). 𝒰(a, b) shows the uniform prior between a and b.

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