Being the Tsallis q-Gaussian function characterized by three parameters C,β and q, instead of comparing it with HTP (seven parameters when normalized to unit area), let us consider the Voigt function. We do comparison to understand the behavior of the spectral line wings for gases. Let us start from a Raman line in the Q branch of the carbon monoxide in mixture with Argon, that we can find in an article by . A plot is available for the Q(5) line and its fitted Voigt function. Here, in the following Figure , we show that a q-Gaussian Tsallis function can be fitted onto data recovered from the figure . From the Figures , we can note that the wings are not Lorentzian. The q parameter is equal to 1.87. This means that the Raman lines of gases are interesting for further research about the power law of line wings.