The Relation Between Variances of a 3D Density and Its 2D Column Density Revisited

Heesun Yoon, Jungyeon Cho

We revisit the relation between the variance of three-dimensional (3D) density ($\ddot{I}{ƒ}_{\ddot{I}}^2$) and that of the projected two-dimensional (2D) column density ($\ddot{I}{ƒ}_{\hat{I}}^2\pounds$) in turbulen…