Shock propagation in a turbulent cloud

Abstract

view Abstract Citations (12) References (26) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Shock Propagation in a Turbulent Cloud Kimura, Toshiya ; Tosa, Makoto Abstract A 2D hydrodynamical simulation is used to investigate the effect of internal turbulence of molecular clouds on the shock waves propagating in the clouds. A model of a turbulent molecular cloud dynamically interacting with the surrounding H II region, which strongly compresses the cloud from the surface, is considered. A shock wave is generated from the cloud surface and propagates into the cloud, where a supersonic random velocity field and large density fluctuation are present. The turbulence strongly affects the propagation of the shock wave to cause a very complex and fragmentary structure in the shocked gas. Behind the distorted shock, many high-density gas clumps are formed. It is argued that the interaction of the internal turbulence of a molecular cloud and a shock wave will play an important role in the formation of high-density gas clumps and stars when a molecular cloud interacts with an expanding H II region. Publication: The Astrophysical Journal Pub Date: April 1993 DOI: 10.1086/172463 Bibcode: 1993ApJ...406..512K Keywords: Hydrodynamic Equations; Molecular Clouds; Shock Wave Interaction; Shock Wave Propagation; Turbulence Effects; Computational Astrophysics; H Ii Regions; Velocity Distribution; Astrophysics; HYDRODYNAMICS; ISM: CLOUDS; ISM: KINEMATICS AND DYNAMICS; ISM: MOLECULES; SHOCK WAVES; TURBULENCE full text sources ADS |