Cloud-cloud collisions in the interstellar medium

Details Cloud-cloud collisions in the interstellar medium Cloud-cloud collisions in the interstellar medium

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...238..842s&link_type=abstract

Astrophysical Journal, Part 1, vol. 238, June 15, 1980, p. 842-852.

Other

45

Astronomical Models, Digital Simulation, Hydrogen Clouds, Interstellar Matter, Molecular Collisions, Stellar Evolution, Gravitational Effects, Thermal Conductivity, Thermal Instability, Time Dependence

Scientific paper

The paper presents results of time-dependent numerical simulations of cloud-cloud collisions in the interstellar medium, with emphasis on physically detailed models of cloud collisions. The simulations include heating, cooling, thermal conductivity, self-gravitation, and molecular formation. A collision between dense molecular clouds is nearly isothermal, whereas a collision between atomic clouds develops a thermal instability and stimulates rapid molecule formation. It is found that a collision between standard H I clouds will produce a diffuse but self-shielding molecular cloud. Finally, cloud-cloud collisions offer a possible triggering mechanism for some star formation events.

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