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Fig. B.1

image

Top: Lomb-Scargle periodogram of the light curve of V346 Nor after removing a parabolic trend, as illustrated in Fig. A.2. The highest peak corresponds to a period of 58 days. The dashed lines show the powers corresponding to false-alarm probabilities of 10-3 and 10-2. Bottom: phase-folded light curve showing the data points after removing the parabolic trend and folded with a period of 58 days.

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