Period detection completeness and reliability for sinusoidal signals with amplitudes from 0.002 to 0.02 mag (black histograms) and from 0.01 to 0.02 mag (red dashed histograms). The period detection completeness is shown as a function of period in panel a), photometric amplitude in panel b), and stellar magnitude in panel c). The reliability of the recovered periods is shown in panel d). Reliable periods are defined as those within 10% of the input periods (shown as a function of input period). Contaminating periods are those that differ from the input period by more than 10% (shown as a function of detected period). The lower left and right panels show the estimated periods as a function of the input periods on a linear scale and on log scale, respectively. Periods recovered with a FAP ≤ 0.01 are shown by large (black) triangles, while those with 0.01 < FAP ≤ 0.05 are shown by small (red) circles. The straight lines show the locus of equal periods and factor of 2 harmonics, and the curves show the location of 1 d period aliases.
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