Other
Scientific paper
Aug 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ap%26ss..78..211v&link_type=abstract
Astrophysics and Space Science, vol. 78, no. 1, Aug. 1981, p. 211-233. Research supported by the Consiglio Nationale delle Rice
Other
1
Astronomical Models, Gravitational Collapse, Interstellar Gas, Isothermal Flow, Rotating Fluids, Angular Momentum, Hydrodynamic Equations, Numerical Integration, Ring Structures
Scientific paper
The gravitational collapse mechanism of a nonmagnetized isothermal rotating interstellar gas cloud is analyzed. The study predicts that final flattened disk-like configurations will form in the central region of the infalling uniform gas cloud. The existence of critical times suggests the possibility that, beyond these times, discrepancies can arise in the numerical calculations. It is therefore considered likely that the ring-like structure, as suggested by earlier numerical calculations of hydrodynamic models, would be caused by pressure effects which arise through the introduction of higher order terms in the linearized theory.
Ferraioli F.
Virgopia N.
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