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Fig. 7

image

Amplitude and growth rate of shear instability modes. Top: amplitude as a function of time, in units of the sound crossing time 0.5τs. Bottom: the growth rate measured after t = 0.6τs (determined by taking the slope of a linear fit of the logarithm of the perturbation amplitudes), are roughly proportional to the wave number n, and roughly agree with the predicted growth rate from Eq. (34).

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