Long-term monitoring of WASP-19 b: Signs of apsidal precession and molecular signatures

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Volume 708 (April 2026)

A&A, 708 (2026) A313

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Table 2

Physical parameters of the WASP-19 system.

Parameter	Value
Stellar mass (M_⊙)	${0.914}_{- 0.019}^{+ 0.019}$ $Mathematical equation: $0.914^{+0.019}_{-0.019}$$
Stellar radius (R_⊙)	${1.003}_{- 0.007}^{+ 0.007}$ $Mathematical equation: $1.003^{+0.007}_{-0.007}$$
Stellar surface gravity (cgs)	${4.396}_{- 0.004}^{+ 0.004}$ $Mathematical equation: $4.396^{+0.004}_{-0.004}$$
Stellar density (ρ_⊙)	${0.906}_{- 0.004}^{+ 0.004}$ $Mathematical equation: $0.906^{+0.004}_{-0.004}$$
Effective temperature (K)	$5460_{- 89}^{+ 88}$ $Mathematical equation: $5460^{+88}_{-89}$$
Planet mass (M_Jup)	${1.171}_{- 0.123}^{+ 0.125}$ $Mathematical equation: $1.171^{+0.125}_{-0.123}$$
Planet radius (R_Jup)	${1.388}_{- 0.009}^{+ 0.009}$ $Mathematical equation: $1.388^{+0.009}_{-0.009}$$
Planet surface gravity (ρ_Jup)	${0.437}_{- 0.046}^{+ 0.046}$ $Mathematical equation: $0.437^{+0.046}_{-0.046}$$
Equilibrium temperature (K)	2070.39 ± 33
Semimajor axis (AU)	${0.016}_{- 0.0001}^{+ 0.0001}$ $Mathematical equation: $0.016^{+0.0001}_{-0.0001}$$
Inclination (degrees)	79.61 ± 0.10
Eccentricity (e)	0.0

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