User:Tohline/Appendix/Ramblings/BordeauxSequences

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Université de Bordeaux (Part 2)

Whitworth's (1981) Isothermal Free-Energy Surface
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Exterior Gravitational Potential of Toroids

J. -M. Huré, B. Basillais, V. Karas, A. Trova, & O. Semerák (2020), MNRAS, 494, 5825-5838 have published a paper titled, The Exterior Gravitational Potential of Toroids. Here we examine how their work relates to the published work by C.-Y. Wong (1973, Annals of Physics, 77, 279), which we have separately discussed in detail.

We discuss this topic in a separate, accompanying chapter.

Spheroid-Ring Systems

Through a research collaboration at the Université de Bordeaux, B. Basillais & J. -M. Huré (2019), MNRAS, 487, 4504-4509 have published a paper titled, Rigidly Rotating, Incompressible Spheroid-Ring Systems: New Bifurcations, Critical Rotations, and Degenerate States.

Key References

Here are some relevant publications:

Especially,

Key Figures

Eriguchi & Hachisu (1983)

Fig. 3 extracted without modification from p. 1134 of Eriguchi & Hachisu (1983)

"Two Kinds of Axially Symmetric Equilibrium Sequences of Self-Gravitating and Rotating Incompressible Fluids:
Two-Ring Sequence and Core-Ring Sequence
"

Progress of Theoretical Physics,

vol. 69, pp. 1131-1136 © Progress of Theoretical Physics

Figure 3 from Eriguchi & Hachisu (1983)

CAPTION:  The angular momentum-angular velocity relations. Solid curves represent uniformly rotating equilibrium sequences.

  • MS:   Maclaurin spheroid sequence
  • JE:   Jacobi ellipsoid sequence
  • OR:   one-ring sequence

The number and letter R or C attached to a curve denote mass ratio and two-ring or core-ring sequence, respectively. If differential rotation is allowed, the equilibrium sequences may continue to exist as shown by the dashed curves.

Whitworth's (1981) Isothermal Free-Energy Surface

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