Planet masses resulting from several runs of the iterative high-pass filtering with 3-, 4-harmonic filters (sets 3H, 4H). The other labels indicate the coherence time in days (see details in the text). The green square represents the interval of confidence of the solution given in Table 2. The large blue cross indicates the adopted solution in QBM and the red squares Q1 and Q2 the solutions corresponding to the published values of K₁, K₂, in QBM. The solutions A (alternative; only CoRoT 7b), B (Boisse), H (Hatzes), 5P (Fourier with 3 harmonics), FF (free Fourier) are discussed in Sects. 8 and 9.