Gravitational collapse and equilibrium conditions of a toroidal vortex with thermal pressure
نویسندگان
چکیده
منابع مشابه
Gravitational Collapse and Equilibrium Conditions of a Toroidal Vortex with Thermal Pressure
We found the equilibrium conditions for a self-gravitating toroidal vortex by taking thermal pressure into account. These conditions are shown to significantly differ from those for a disk or a sphere. The evolution of a thin vortex turns it into a compact vortex that loses mechanical stability for low masses at a polytropic index γ < 4/3 but retains stability for sufficiently high masses and d...
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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...
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ژورنال
عنوان ژورنال: Astronomy Letters
سال: 2003
ISSN: 1063-7737,1562-6873
DOI: 10.1134/1.1624458