Fig. 7
Top: fourier Transforms (DCDFT) of the observed (black) and filtered data with the 3- and 4-harmonic high-pass filters in the period BJD 2 454 847–873. Bottom: extension of the transforms to beyond the Nyquist frequency to show their behavior below 1 day. B,C are the orbital frequencies of CoRoT 7b and 7c; B′,C′ are aliases of B,C. The rotation period and its first harmonics are indicated on the top axis.
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