Astronomy and Astrophysics – Astronomy
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aspc..289..195i&link_type=abstract
The Proceedings of the IAU 8th Asian-Pacific Regional Meeting, Volume I, held 2-5 July 2002 at National Center of Sciences, Hito
Astronomy and Astrophysics
Astronomy
Scientific paper
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.
Inutsuka Shu-ichiro
Koyama Hiroshi
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