ИСТИНА

The purpose of the presentation is the analysis of results for parallel numerical simulations of shock collisions between molecular clouds upon impact in different scenarios: with head-on, shifted and rotation interplay. These processes are accompanied by oscillating unstable perturbations in the distribution of matter density in new formed cloud residues. In clumps of remnants containing more condensed matter, the gas density can reach values that are at the initial level of pre-stellar formations, zones where new stars can form with a high probability. The generation of revealed coherent structures in new cloud formations unbalanced after a collision is determined by the hydrodynamic Kelvin-Helmholtz instability and, perhaps, by Nonlinear Thin Shell Instability effects, which trigger oscillation of density in the shock compression core and at the boundaries of nebular.