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Table F.1

Priors and description of parameters used within juliet to model RVs of HD88986 in Sect. 5.2.

Parameter prior description
Planet parameters
P (d) 𝒰(135,155) Period of the HD88986 b
Tc-2400000 (d) 𝒰(58850,58850 + 146) Center of the transit time for HD88986 b
K (m s−1) 𝒰(0,10) RV semi-amplitude for HD88986 b
e 𝒰(0,1) or 0 (fixed) Eccentricity
ω (°) 𝒰(0,360) or 90 (fixed) Argument of periastron
Telescope Parameters:
σSOPHIE+ (m s−1) 𝒰(1e − 3,100.) RV jitter
muSOPHIE+ (m s−1) log 𝒰(28995,29196) Instrumental offset
Drift on SHOPHIE+:
A (m s−1) 𝒰(−5,5) Linear RV drift
Q (m s−1) 𝒰(−5,5) Quadratic RV drift
QP-GP on SOPHIE+:
BGP (m s−1) 𝒥(10−5,100) Amplitude of the GP kernel
CGP (m s−1) 10−20 (fixed) Constant scaling term of the GP kernel
Prot (d) 𝒩(29,3) Rotation period of the GP kernel
LGP (d) 𝒥(10−20, 300) Correlation time-scale of the GP kernel
EXP-GP on SOPHIE+:
TGP log 𝒰(1e − 13,100.) Length-scale of the GP kernel
σGP(m s−1) log 𝒰(1e − 13,100.) Amplitude of the GP kernel
sinusoidal on SOPHIE+:
P (d) 𝒰(25,35) Period for the additional sinusoid
K (m s−1) 𝒰(58870, 58870 + 30) RV semi-amplitude for the additional sinusoid
Tc-2400000 (d) 𝒰(0,10) Center of the transit time for additional sinusoid

Notes. The prior labels of 𝒩, 𝒰, log 𝒰 indicate normal, uniform, and uniform logarithms of distributions.

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