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Table A.3

GJ 849: Priors and best-fit parameters for the tested MCMC models.

Priors Best-fit parameters
2 Keplerians GP + 2 Keplerians
Kb [m s−1] 𝒰(0,40)
Pb [d] 𝒰(1800,1980)
T0b [BJD−2450000] 𝒰(3800,5300)

Mb sin i [MJ]
ab [AU]
eb
ωb [rad] .

Kc [m s−1] 𝒰(0,30)
Pc [d] 𝒰(4000,8000)
T0c [BJD−2450000] 𝒰(2500,5500)

Mc sin i [M]
ac [AU]
ec
ωc [rad]

h [m s−1] 𝒰(0,10) -
λ [d] log 𝒰(1,500) -
w 𝒰(0,1) -
θ [d] 𝒰(10,50) -

γHIRES-pre [m s−1] 𝒰(-100,100)
σjit,HIRES-pre [m s−1] 𝒰(0,30)
γHIRES-post [m s−1] 𝒰(-100,100)
σjit,HIRES-post [m s−1] 𝒰(0,20)
γHARPS-N [m s−1] 𝒰(-100,100)
σjit,HARPS-N [m s−1] 𝒰(0,15)
γHARPS [m s−1] 𝒰(-100,100)
σjit,HARPS [m s−1] 𝒰(0,15)
γCARMENES [m s−1] 𝒰(-100,100)
σjit,CARMENES [m s−1] 𝒰(0,15) .

BIC 807 776

Notes. The chosen final model is highlighted in bold.

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