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Table 4

Comparison of tested models.

Model (Period [days]) BIC ΔBIC σ o−c
[ ms-1 ]

K1 (1842) 611 6.35 2.63
K2 (1842, 3.09) 389 221 3.90 2.00
K3 (1842, 3.09, 46.7) 275 114 2.47 1.54
K4 (1842, 3.09, 46.7, 6.76) 241 34 1.89 1.31

Notes.The four-Keplerian model is preferred since it has the lowest BIC, and residual dispersion. These values are estimated based on the maximum likelihood.

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