Sub-Jupiter gas giants orbiting giant stars uncovered using a Bayesian framework

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Volume 704 (December 2025)

A&A, 704 (2025) A283

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Table F.3

Most probable EMPEROR posterior mean RV model outcomes for HIP 18606

Parameter	e_F WNO k=1
P_orb [d]	${674.94}_{- 6.28}^{+ 6.43}$ $\[674.94_{-6.28}^{+6.43}\]$
Amplitude [m s⁻¹]	${16.07}_{- 1.18}^{+ 1.18}$ $\[16.07_{-1.18}^{+1.18}\]$
Eccentricity	−
ω [rads]	1.571
Θ [rads]	${4.47}_{- 0.14}^{+ 0.16}$ $\[4.47_{-0.14}^{+0.16}\]$
Msin(i) [M_J]	0.77±0.07
a [AU]	1.61±0.05
$\dot{γ}$ $\[\dot{\gamma}\]$ [ms⁻¹ yr⁻¹]	${0.06}_{- 0.57}^{+ 0.56}$ $\[0.06_{-0.57}^{+0.56}\]$

Nuisance Parameters
γ_UCLES [m s⁻¹]	−3.54±2.08
γ_{Chiron_pre} [m s⁻¹]	$- {1.37}_{- 3.58}^{+ 3.25}$ $\[-1.37_{-3.58}^{+3.25}\]$
γ_{Chiron_post} [m s⁻¹]	${1.59}_{- 8.58}^{+ 8.79}$ $\[1.59_{-8.58}^{+8.79}\]$
γ_FEROS [m s⁻¹]	${0.86}_{- 4.54}^{+ 4.66}$ $\[0.86_{-4.54}^{+4.66}\]$
θ_jit,UCLES [m s⁻¹]	${3.93}_{- 1.13}^{+ 1.56}$ $\[3.93_{-1.13}^{+1.56}\]$
θ_{jit,Chiron_pre} [m s⁻¹]	${6.42}_{- 2.40}^{+ 2.91}$ $\[6.42_{-2.40}^{+2.91}\]$
θ_{jit,Chiron_post} [m s⁻¹]	${9.06}_{- 2.73}^{+ 3.86}$ $\[9.06_{-2.73}^{+3.86}\]$
θ_jit,FEROS [m s⁻¹]	${9.59}_{- 1.50}^{+ 1.74}$ $\[9.59_{-1.50}^{+1.74}\]$

The Chiron ‘pre’ and ‘post’ subscripts represent the data taken before and after the 2020 global pandemic SMARTS shutdown (October 26, 2020).

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