Fig. 3 | Nature Communications

Fig. 3

From: Supersonic plasma turbulence in the laboratory

Fig. 3

Density and velocity power spectra. The blue dots in panels (ac) show the measured density power spectra at 500 ns, 600 ns, and 700 ns, respectively, obtained from the corresponding Schlieren images. The dashed line shows a fitted slope of the power spectrum, while the shaded regions mark the resolution limit of the imaging system (upper bound on wave numbers) and the size of the windowing function applied during the calculation (lower bound on wave numbers). The error bars show the standard deviation in the spectra based on measurements performed in four regions of the plasma—see box in Fig. 2b. The blue dots in panels (df) show the magnetic-field power spectra taken at 500 ns, 600 ns, and 700 ns, respectively, obtained from the induction-coil data (Fig. 1). The shaded region marks the resolution limit of the induction loop. Additional details on the calculation of resolution limits and error bars are given in the supplementary methods

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