A heuristic criterion for instability to fragmentation in rotating, interstellar clouds

Details A heuristic criterion for instability to fragmentation in rotating, interstellar clouds A heuristic criterion for instability to fragmentation in rotating, interstellar clouds

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...259..159b&link_type=abstract

Astrophysical Journal, Part 1, vol. 259, Aug. 1, 1982, p. 159-165.

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7

Heuristic Methods, Hydrodynamics, Interstellar Gas, Molecular Clouds, Perturbation Theory, Stellar Evolution, Binary Stars, Gravitational Collapse, Jeans Theory

Scientific paper

A heuristic criterion, based on linear perturbation analysis, is applied to the initial growth of density perturbations in isothermal or adiabatic gas clouds, with initially uniform density and uniform rotation. The heuristic criterion is shown to be consistent with the available results from numerical calculations of cloud collapse. The criterion predicts that perturbations varying as cos(m-phi) will be most likely to grow when m is small, unless the cloud is nearly pressureless.

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