2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/13034The question of the shape of the density PDF for supersonic turbulence is addressed, using both analytical and numerical methods. For isothermal supersonic turbulence, the PDF is Log-Normal, with a width that scales approximately linearly with the Mach number. For a polytropic equation of state, with an effective gamma smaller than one, the PDF becomes skewed and reminiscent of (but not equal to) a power law on the high density side.Interstellar Turbulence, Proceedings of the second Guillermo Haro Conference, held in Puebla, Mexico, Jan, 12-16, 1998, Eds.: Franco, J.; Carraminana, A., Cambridge University PressAstrophysicstext