On the Evolution and Gravitational Collapse of a Toroidal Vortex

Details On the Evolution and Gravitational Collapse of a Toroidal Vortex On the Evolution and Gravitational Collapse of a Toroidal Vortex

2004-07-15

arxiv.org/abs/astro-ph/0407320v1

J.Exp.Theor.Phys. 96 (2003) 985; Zh.Eksp.Teor.Fiz. 123 (2003) 1123

Astronomy and Astrophysics

Astrophysics

11 pages, 3 figures

Scientific paper

The evolution and collapse of a gaseous toroidal vortex under the action of self-gravitation are considered using the Hamiltonian mechanics approach. It is shown that evolution occurs in three main stages separated by characteristic time scales. First, a compression along the small radius to a quasi-equilibrium state takes place, followed by a slower compression along the large radius to a more stable compact vortex object. In the latter stage, the possibility of effective scattering and ejection of particles along the vortex axis (jet formation) is detected. As a result, mass, energy, and momentum losses take place, and the vortex collapses.

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