Fig. 2From: On the accuracy of macroscopic equations for linearized rarefied gas flowsSpectra of the (a) spontaneous and (b) coherent RBS from the LBE for Maxwellian gases. Note that in this figure and following figures, each spectrum has been normalized by the maximum value, where the frequency has been normalized by vm/L. Due to the symmetry S(Kn,fs)=S(Kn,−fs), only half of the spectrum is shownBack to article page