Circumstellar ring formation in rapidly rotating protostars

Details Circumstellar ring formation in rapidly rotating protostars Circumstellar ring formation in rapidly rotating protostars

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...334..449w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 334, Nov. 1, 1988, p. 449-464.

Astronomy and Astrophysics

Astrophysics

61

Protostars, Star Formation, Stellar Envelopes, Stellar Rotation, Angular Momentum, Computerized Simulation, Hydrodynamics, Molecular Clouds, Potential Energy

Scientific paper

A three-dimensional hydrodynamic computer program is used to study rapidly rotating, self-gravitating polytropes with polytropic indices n = 0.8 and n = 1.8. The initial ratio of the rotational to gravitational potential energy is βi = 0.310 in both models. Both models, initially axisymmetric, are dynamically unstable toward the development of a nonaxisymmetric, two-armed spiral structure. Here the models are shown as they evolve to extremely nonlinear amplitudes: the end result in both cases is a type of fission. The models shed a fraction of their mass and angular momentum, producing a ring which surrounds a more centrally condensed object with βd= 0.27. The central object is a triaxial figure that is rotating about its shortest axis. The low-mass, roughly axisymmetric ring probably is capable of condensing into planets.

Affiliated with

Also associated with

No associations

Rating

Circumstellar ring formation in rapidly rotating protostars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Circumstellar ring formation in rapidly rotating protostars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circumstellar ring formation in rapidly rotating protostars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1825676