Ion-acoustic waves at the night side of Titan’s ionosphere: higher-order approximation
S M Ahmed,E R Hassib,U M Abdelsalam,R E Tolba,W M Moslem
Figure 1. The phase velocity λ versus the density ratio N2, where μ2 = 0.97, μ3 = 0.68, σ1,2,3 = 0.1, and N3 = 0.1.