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| Paper: |
The Formation of Molecular Clouds: the Origin of Supersonic Turbulence |
| Volume: |
289, The Proceedings of the IAU 8th Asian-Pacific Regional Meeting, Volume I |
| Page: |
195 |
| Authors: |
Inutsuka, S.; Koyama, H. |
| Abstract: |
We have done two- and three-dimensional magnetohydrodynamical simulations of the propagation of a shock wave into the interstellar medium by taking into account radiative heating/cooling, thermal conduction, and physical viscosity. Our results show that the thermal instability in the post-shock gas in the interstellar medium produces high-density molecular cloudlets which have a supersonic velocity dispersion. The dynamical evolution driven by thermal instability in the post-shock layer is an important basic process for the transition from warm gases to cold molecular gases, because the shock waves are frequently generated by supernovae in the Galaxy. |
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