Equilibrium and stability of а thin torus in the gravitation field of a galaxy

Self-gravitating thin ring in the gravitation field of a galaxy is investigated. It's shown that all toroidal structures are subjected to the secular instability, but the dynamical instability is possible under some conditions. Self-gravitating formation can “diffuse” forming some ring system o...

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Main Authors: O. A. Zheleznyak, A. A. Tereshchenko
Format: Article
Language:English
Published: National Aviation University 2012-12-01
Series:Вісник Астрономічної школи
Subjects:
Online Access:http://astro.nau.edu.ua/issues/2012_V.8_Iss.2/ZheleznyakTereshchenko.html
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spelling doaj-00a3c5fe08524f4a92c98c1b7ef8ecf82020-11-25T01:40:03ZengNational Aviation UniversityВісник Астрономічної школи1607-28552411-66022012-12-018212913510.18372/2411-6602.08.21292411-6602.08.2129Equilibrium and stability of а thin torus in the gravitation field of a galaxyO. A. Zheleznyak0A. A. Tereshchenko1National Aviation University, UkraineNational Aviation University, UkraineSelf-gravitating thin ring in the gravitation field of a galaxy is investigated. It's shown that all toroidal structures are subjected to the secular instability, but the dynamical instability is possible under some conditions. Self-gravitating formation can “diffuse” forming some ring system or brake up to separate self-gravitating condensations.http://astro.nau.edu.ua/issues/2012_V.8_Iss.2/ZheleznyakTereshchenko.htmlgravitational field of galaxiesstability of annular self-gravitating formations
collection DOAJ
language English
format Article
sources DOAJ
author O. A. Zheleznyak
A. A. Tereshchenko
spellingShingle O. A. Zheleznyak
A. A. Tereshchenko
Equilibrium and stability of а thin torus in the gravitation field of a galaxy
Вісник Астрономічної школи
gravitational field of galaxies
stability of annular self-gravitating formations
author_facet O. A. Zheleznyak
A. A. Tereshchenko
author_sort O. A. Zheleznyak
title Equilibrium and stability of а thin torus in the gravitation field of a galaxy
title_short Equilibrium and stability of а thin torus in the gravitation field of a galaxy
title_full Equilibrium and stability of а thin torus in the gravitation field of a galaxy
title_fullStr Equilibrium and stability of а thin torus in the gravitation field of a galaxy
title_full_unstemmed Equilibrium and stability of а thin torus in the gravitation field of a galaxy
title_sort equilibrium and stability of а thin torus in the gravitation field of a galaxy
publisher National Aviation University
series Вісник Астрономічної школи
issn 1607-2855
2411-6602
publishDate 2012-12-01
description Self-gravitating thin ring in the gravitation field of a galaxy is investigated. It's shown that all toroidal structures are subjected to the secular instability, but the dynamical instability is possible under some conditions. Self-gravitating formation can “diffuse” forming some ring system or brake up to separate self-gravitating condensations.
topic gravitational field of galaxies
stability of annular self-gravitating formations
url http://astro.nau.edu.ua/issues/2012_V.8_Iss.2/ZheleznyakTereshchenko.html
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