Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....74..288b&link_type=abstract
Astronomy and Astrophysics, vol. 74, no. 3, May 1979, p. 288-293.
Astronomy and Astrophysics
Astrophysics
30
Gravitational Collapse, Protostars, Stellar Evolution, Stellar Rotation, Computerized Simulation, Stellar Models
Scientific paper
Two entirely different numerical computer codes for calculating self-gravitating axisymmetric flows with rotation are compared. The case considered is the isothermal collapse of a 1-solar mass cloud with initial density of 1.38 x 10 to the -18th g/cu cm and angular velocity of 6.08 x 10 to the -13th per sec; the collapse is followed beyond 10 free-fall times in order to allow transient structures, which may dominate locally, to damp out. For both codes the final model is found to be a low-density equilibrium configuration rather than a centrally condensed protostar. It is concluded that the formation of ring structures in collapsing clouds with rotation is a real phenomenon.
Bodenheimer Peter
Tscharnuter Walther W.
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