High-resolution transmission spectroscopy of the hot-Saturn HD 149026b

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Table A.1

Set of priors used for the RM analysis.

Uniform Parameters	min	max
Systemic velocity^(a) γ [km s⁻¹]	‐18.5	‐17.5

Gaussian Parameters	^µ	σ

Radial velocity^(b) K_⋆ [km s⁻¹]	0.0379	0.005
Inclination^(b) i [deg]	84.50	0.6
Stellar rotational velocity^(b) v sin i [km s⁻¹ ]	6.00	0.50
R_p/R⋆ ^(c)	0.050565	0.0050565
Projected obliquity^(d) λ [deg]	12	7
δT0 [Phase] ^(a)	0	0.1

(a) This work; (b) Bonomo et al. (2017); (c) Spinelli et al. (2023); (d) Albrecht et al. (2012).

The parameters are distributed with a uniform and a normal distribution. The minimum and maximum values correspond to the boundaries of the uniform distribution, while µ and σ correspond to the center and the standard deviation of the normal distribution.

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