Fig. 4From: On the accuracy of macroscopic equations for linearized rarefied gas flowsSpectra of the spontaneous (a,b) and coherent (c,d) RBS, when (a,c) Kn=0.05 and (b,d) Kn=0.1. Solid, dashed, and dash-dotted lines are the results from super-Burnett equations with θ7=−157/16,−15/4 and 11/16, respectively. Triangles are results from the Woods’ equationsBack to article page