Open Access

Fig. 1.

image

Free electrons density contrast power spectrum for a box filled with enough bubbles of radius R = 15 px = 5.5 Mpc to reach a filling fraction f = 1%. Points are results of a numerical computation of the power spectrum, compared to the theoretical model (solid line). The dotted vertical line corresponds to k = 1/R, the dashed vertical line to 91/4/R, the dashed horizontal line to 4/3πR3/f and the tilted dashed line has slope k−4.

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