A model for (non-lognormal) density distributions in isothermal turbulence
A model for (non-lognormal) density distributions in isothermal turbulence
We propose a new, physically motivated fitting function for density PDFs in turbulent gas. Although it is known that when gas is isothermal, the PDF is approximately lognormal in the core, high-resolution simulations show large deviations from exact log-normality. The proposed function provides an extraordinarily accurate description of the density …