Magnetohydrodynamic simulation assessment of a potential near-ultraviolet early ingress in WASP-189b

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Table 1

Input parameters and best-fit results from the MCMC analysis.

WASP-189b planetary parameters
Symbol	Unit	value
P	days	2.7240330^a
a/R_s	-	4.67^a,b
i	deg	84.03^b
e	–	0^a,b
ω	deg	89.6 ± 1.2^c

MCMC transit fitting results
Parameter	V1	V2	V3
t₀	${0.036}_{- 0.004}^{+ 0.004}$ $0.036_{ - 0.004}^{ + 0.004}$	${0.039}_{- 0.005}^{+ 0.005}$ $0.039_{ - 0.005}^{ + 0.005}$	${0.014}_{- 0.015}^{+ 0.011}$ $0.014_{ - 0.015}^{ + 0.011}$
R_p/R_s	${0.104}_{- 0.005}^{+ 0.005}$ $0.104_{ - 0.005}^{ + 0.005}$	${0.107}_{- 0.007}^{+ 0.007}$ $0.107_{ - 0.007}^{ + 0.007}$	${0.103}_{- 0.006}^{+ 0.007}$ $0.103_{ - 0.006}^{ + 0.007}$
(u₁, u₂)	(0.335, 0.392)	(0.381, 0.395)	(0.394, 0.427)

Notes. Symbol definitions: P: orbital period. a/R_s: semi-major axis in stellar radii, i: orbital inclination, e: orbital eccentricity, ω: orbital obliquity. t₀: time of inferior conjunction (days). R_p/R_s: planet radius in stellar radii, (u₁, u2): quadratic limb darkening coefficients. ^(a)Lendl et al. (2020). ^(b)Anderson et al. (2018). ^(c)Deline et al. (2022).

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