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Fig. 3.


Results in the presence of flow. Contour plots of vph/vA,i (panels a and b) and LD/R (panels c and d) as functions of l/R and Ui/vA,i. Panels a and c: forward propagating wave, while panels b and d are for the backward propagating wave. We note that LD/R is given in logarithmic scale. We have used kzR = 0.1.

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