Fragmentation in rotating isothermal protostellar clouds

Details Fragmentation in rotating isothermal protostellar clouds Fragmentation in rotating isothermal protostellar clouds

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ssrv...27..247b&link_type=abstract

(International Astronomical Union, Colloquium on Stellar Hydrodynamics, 58th, Los Alamos, N. Mex., Aug. 12-15, 1980.) Space Scie

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1

Cloud Physics, Fragmentation, Interstellar Gas, Isothermal Processes, Protostars, Stellar Evolution, Gravitational Fields, Hydrodynamics, Rotating Fluids

Scientific paper

The paper reports results of an extensive set of three-dimensional hydrodynamic calculations performed to investigate the susceptibility of rotating clouds to gravitational fragmentation; only isothermal collapse sequences were considered. It is found that rotating isothermal gas clouds are unstable to fragmentation under a wide range of conditions. The degree of instability and the mode (ring vs. blob) of fragmentation is sensitive to alpha, but insensitive to beta. The initial amplitude of a perturbation does not appear to be crucial; fragmentation should occur eventually even for low-amplitude initial NAPs.

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