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Related Experiment Videos

Binaries and core-ring structures in self-gravitating systems.

I Ispolatov1

  • 1Departamento de Fisica, Universidad de Santiago de Chile, Casilla 302, Correo 2, Santiago, Chile.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|October 4, 2005
PubMed
Summary
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Self-gravitating systems with angular momentum can form asymmetric binaries or a central core with an equatorial ring. The ring

Area of Science:

  • Astrophysics
  • Computational Physics

Background:

  • Studying low-energy states of self-gravitating systems is crucial for understanding cosmic structure formation.
  • Previous models allowed astrophysically irrelevant asymmetric configurations.

Purpose of the Study:

  • To investigate equilibrium configurations of self-gravitating systems with finite angular momentum.
  • To exclude single-core asymmetric configurations and focus on physically relevant states.

Main Methods:

  • Introduction of a constraint to confine system components via gravity.
  • Analysis of equilibrium configurations under varying angular momentum and short-distance cutoff parameters.

Main Results:

  • Asymmetric binary configurations emerge for intermediate angular momentum and cutoff ranges.

Related Experiment Videos

  • A central core and equatorial ring configuration forms at higher angular momentum.
  • The ring's mass scales with angular momentum, reaching full system mass at maximum angular momentum L(max).

    • Conclusions:

    • The study identifies distinct equilibrium states for self-gravitating systems based on angular momentum.
    • The findings are robust across different short-distance regularization methods.