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Table C.1

HD 55693 model statistics.

ln P-ln 𝒵 ln 𝒵 σ^Z${{{\hat \sigma }_Z}}$ BIC χv2${\chi _v^2}$ RMS
WN (K0) 11.48±0.01 -235.28±0.01 0.25 474.19±0.01 1.09±0.01 3.54±0.01
WN (K1) 23.68±0.03 -218.95±0.01 0.43 439.29±0.06 1.16±0.01 2.54±0.01
WN (K2) 33.97±0.30 -214.29±0.10 0.09 431.53±0.45 1.22±0.16 2.11±0.01

MA (K0) 13.84±0.10 -227.94±0.11 0.07 463.64±0.01 1.11±0.01 3.15±0.01
MA (K1) 22.13±0.09 -213.12±0.05 0.09 439.57±0.16 1.18±0.07 2.41±0.02
MA (K2) 33.70±0.86 -212.91±0.18 0.10 438.18±1.67 1.36±0.01 2.06±0.02

SA (K0) 3.48±0.06 -217.79±0.06 0.09 438.89±0.07 1.16±0.04 2.73±0.01
SA (K1) 25.99±0.12 -213.49±0.08 0.08 437.04±0.17 1.23±0.05 2.27±0.01
SA (K2) 35.54±1.51 -213.29±0.04 0.09 439.69±3.01 1.05±0.22 1.99±0.08

SAMA (K0) -1.23±0.22 -215.74±0.20 0.10 440.54±0.28 1.22±0.06 2.60±0.01
SAMA (K1) 32.22±0.05 -213.38±0.01 0.09 440.59±1.66 1.27±0.02 2.12±0.15
SAMA (K2) 41.57±0.28 -212.03±0.07 0.11 433.97±0.54 1.27±0.04 1.85±0.01

𝒢𝒫 rot(K0) 28.01±0.01 -235.17±0.01 0.22 463.06±0.02 1.09±0.011 2.68±0.01
𝒢𝒫 rot(K1) 31.10±0.59 -211.76±0.12 0.10 432.21±1.16 0.40±0.074 0.81±0.05

𝒢𝒫 rot+SHO(K0) 27.55±0.13 -214.70±0.12 0.18 436.34±0.13 0.41±0.010 0.81±0.04

Notes. Runs from different models: (Kn) denotes the number of Keplerian signals. In descending order: white noise only (WN), exponentially weighted moving average (MA), stellar activity linearly correlated (SA), stellar-activity plus moving average (SAMA), Gaussian Process with a rotation kernel (𝒢𝒫 rot), and GP with a rotation kernel plus a simple harmonic oscillator (𝒢𝒫 rot+SHO).

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