The interaction of hydrodynamic shocks with self-gravitating clouds

Abstract

We describe the results of 3D simulations of the interaction of hydrodynamic shocks with Bonnor-Ebert spheres performed with an Adaptive Mesh Refinement code. The calculations are isothermal and the clouds are embedded in a medium in which the sound speed is either four or ten times that in the cloud. The strengths of the shocks are such that they induce gravitational collapse in some cases and not in others and we derive a simple estimate for the shock strength required for this to occur. These results are relevant to dense cores and Bok globules in star forming regions subjected to shocks produced by stellar feedback.

9 pages 9 figures

References in corpus (5)

• Simultaneous Triggered Collapse of the Presolar Dense Cloud Core and Injection of Short-Lived Radioisotopes by a Supernova Shock Wave
• Local Star formation triggered by SN shocks in magnetized diffuse neutral clouds
• Triggered Star Formation on the Border of the Orion-Eridanus Superbubble
• Spitzer Observations of the HII Region NGC 2467: An Analysis of Triggered Star Formation
• Triggered Star Formation and Its Consequences

Cited by in corpus (2)

• Triggering Collapse of the Presolar Dense Cloud Core and Injecting Short-Lived Radioisotopes with a Shock Wave. V. Nonisothermal Collapse Regime
• Suppression of the Richtmyer-Meshkov Instability due to a Density Transition Layer at the Interface