Other
Scientific paper
Jun 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...246..866b&link_type=abstract
Astrophysical Journal, Part 1, vol. 246, June 15, 1981, p. 866-878.
Other
19
Binary Stars, Gravitational Collapse, Hydrodynamic Equations, Interstellar Gas, Protostars, Stellar Evolution, Tides, Gas Density, Mathematical Models, Perturbation Theory, Point Sources, Rotating Fluids, Stellar Mass, Stellar Rotation, Three Dimensional Flow
Scientific paper
The manner in which interstellar clouds fragment into subcondensations capable of becoming stars is still unknown. A variety of mechanisms may be responsible for cloud fragmentation. The considered investigation is concerned with a mechanism which is based on tidal forces due to a companion cloud. A 3D code is used to study the tidal effects of point sources of various masses located in the equatorial plane of an initially uniform density, uniformly rotating, isothermal gas cloud. It is found that tidal forces can be quite effective at inducing fragmentation in an initially uniform cloud, although the effects are most pronounced for low thermal energy clouds, perturbed by perhaps unreasonably large tidal forces. It is also seen that tidal forces may be much less efficient at preventing the collapse of a cloud than has previously been supposed.
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