Density Structure of the Interstellar Medium and the Star Formation Rate in Galactic Disks
Density Structure of the Interstellar Medium and the Star Formation Rate in Galactic Disks
The probability distribution functions (PDF) of density of the ISM in galactic disks and global star formation rate are discussed. Three-dimensional hydrodynamic simulations show that the PDFs in globally stable, inhomogeneous ISM in galactic disks are well fitted by a single log-normal function over a wide density range. The dispersion …