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Table 6

Results of the complete fit.

Parameter Symbol (units) Fit Value Priors
Assumed parameters
Stellar rotation V sin i (km s–1) 2.26
Stellar mass Μ* (M) 0.717
Planet-to-star radius ratio rp/R 0.15940
Semi-major axis a0 (AU) 0.01526
First transit epoch T0 (BJDTDB-2 454 000) 5528.86823
Adjusted parameters
Jitters ID 1 jit1 (m s–1) RV 2.1
ID 2 jit2 (m s–1) RV 0.0
ID 3 jit3 (m s–1) RV 11.4
ID 4 jit4 (m s–1) RV 13.8
ID 5 jit5 (m s–1) RV 18.4
ID 5 jit6 (m s–1) RV 17.1
ID 6 jit7 (m s–1) RV 4.5
ID 7 jit8 (m s–1) RV 6.1
Transits jittr (d) Tr 0.00104
Occultations jitocc (d) Occ 0.00023
Fitted parameters
Offset velocity of the system I Vγ (km s–1) RV −3.602 ± 0.013 𝒰 [–∞,+ ∞]
Long-trend acceleration Vγ (km s–2) RV (1.05 ± 1.48) ⋅ 10-10 𝒰 [–∞,+ ∞]
RV semi-amplitude K0 (km s–1) RV 0.5543 ± 0.0017 𝒰 [–∞,+ ∞]
Offset instrumental ID 2 Vinstr,2 (km s–1) RV −0.00011 ± 0.01731 𝒰 [–∞,+ ∞]
velocity ID 3 Vinstr,3 (km s–1) RV +0.017 ± 0.014 𝒰 [–∞,+ ∞]
ID 4 Vinstr,4 (km s–1) RV +0.0011 ± 0.0192 𝒰 [–∞,+ ∞]
ID 5 Vinstr,5 (km s–1) RV +0.038 ± 0.029 𝒰 [–∞,+ ∞]
ID 6 Vinstr,5 (km s–1) RV +0.0035 ± 0.029 𝒰 [–∞,+ ∞]
ID 7 Vinstr,6 (km s–1) RV +0.00082 ± 0.02888 𝒰 [–∞,+ ∞]
ID 8 Vinstr,7 (km s–1) RV +0.0023 ± 0.0425 𝒰 [–∞,+ ∞]
esinω0$\sqrt e \cdot \sin {\omega _0}$ RV, Tr/Occ 0.0310.014+0.010$ - 0.031_{ - 0.014}^{ + 0.010}$ 𝒰 [–1,+1]
ecosω0$\sqrt e \cdot \cos {\omega _0}$ RV, Tr/Occ 0.0240.011+0.014$ - 0.024_{ - 0.011}^{ + 0.014}$ 𝒰 [–1,+1]
Anomalistic period Pa,0 (d) RV, Tr/Occ 0.8137920.000017+0.000011$0.813792_{ - 0.000017}^{ + 0.000011}$ 𝒰 (0.81;0.1)
Tidal decay rate P˙a( ms yr1)${\dot P_{\rm{a}}}\left( {{\rm{msy}}{{\rm{r}}^{ - 1}}} \right)$ RV, Tr/Occ –1.99 ± 0.50, ± 0.99 𝒰 [–∞,+ ∞]
Periastron precession rate ω˙(°d1)$\dot \omega \left( {^^\circ {{\rm{d}}^{ - 1}}} \right)$ RV, Tr/Occ 0.17270.0089+0.0083$0.1727_{ - 0.0089}^{ + 0.0083}$
(″ d–1) 621.7232.04+29.88$621.72_{ - 32.04}^{ + 29.88}$
Stellar Love number k2,* RV 0.020 ± 0.011 𝒩 (0.020; 0.004)
Stellar temperature Teff,* (K) RV 4523.79 ± 270.51 𝒩 (4500 K; 100 K)
Planet-to-star mass ratio q RV 0.00273 ± 0.00027 𝒩 (0.00273; 9.9·⋅ 10–5)
Rotational stellar period111 Prot,* (d) RV 13.245.85+6.11$13.24_{ - 5.85}^{ + 6.11}$ 𝒩 (15.0; 10.0)
Orbital inclination i (°) RV, Tr/Occ 82.32 ± 1.08 𝒩 (82.3°; 1.0°)
Derived parameters
Eccentricity e 0.00188 ± 0.00035, ± 0.00070, ± 0.00160
Periastron angle ω0 (º) 47.09 ± 23.89
Sidereal period Ps (d) 0.81347489 ± 9.9e-8
RV semi-amplitude increase K˙( m s1yr1)$\dot K\left( {{\rm{m}}{{\rm{s}}^{ - 1}}{\rm{y}}{{\rm{r}}^{ - 1}}} \right)$ (1.58 ± 0.39)⋅ 10–5

Notes. The table shows the assumed, adjusted, and fitted parameters with their priors and the derived parameters. The third column states whether the fitted parameter is used to model radial velocity (“RV”) and/or mid-transit and mid-occultation times (“Tr/Occ”. Error bars are reported with 1σ confidence level for all parameters, while for e, ω˙$\dot \omega $, and P˙a${\dot P_a}$, they are reported also with 2σ confidence level. For e, we also report the 5σ confidence level to strengthen the findings.(†) The stellar rotational period is fitted as in Equation (10) in Bernabò et al. (2024).

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