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Table 1.

PL, DRW, and BPL best-fit parameters from the fits in Fig. 4.

Mod. PSDnorma νbb α χ2/dof (pnull)
PL 3.4±0.2 –1.89±0.06 30.1/20 (0.07)
DRW 22±7 0.9 ± 0.2 22.2/20 (0.32)
BPL 0.011±0.002 3.5±1.1 –2.60±0.25 18.2/19 (0.51)

Notes. The parameter α represents the single slope of the PL model, and the high-frequency slope (αhigh) of the BPL model (where αlow is kept fixed at 1). DRW has no best-fit slope parameters, as αlow and αhigh are fixed to 0 and 2, respectively. The break frequency, νb is not defined for the PL model.

a

In units of day−1,

b

In units of 10−3 day−1.

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