Wavelet plane at small scale (j = 3) with the peaks and arches found. The circles correspond to those local maxima with a Poisson significance greater or equal to 2 (P_p ≥ ϵ_2σ), whereas crosses correspond to those with P_BS ≥ 0.8. In both cases, the diameter corresponds to Δ2^j+1, indicating the highest size expected for the structures at this scale. On the right, we have associated the peaks into arches and fitted a parabola (dark green lines). The dashed grey lines then correspond to constant kinetic energy tracks.