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 4 or 10 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.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- February 2017
- DOI:
- 10.1093/mnras/stw2795
- arXiv:
- arXiv:1612.02204
- Bibcode:
- 2017MNRAS.465..260F
- Keywords:
-
- hydrodynamics;
- shock waves;
- stars: formation;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- 9 pages 9 figures