RELATIVISTIC RING MODELS

被引:2
作者
Ujevic, Maximiliano [1 ]
Letelier, Patricio S. [2 ]
Vogt, Daniel [2 ]
机构
[1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Sao Paulo, Brazil
[2] Univ Estadual Campinas, Inst Matemat Estat & Comp Cient, Dept Matemat Aplicada, BR-13081970 Campinas, SP, Brazil
来源
INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2011年 / 20卷 / 12期
基金
巴西圣保罗研究基金会;
关键词
General relativity; rings; stability; DENSITY-POTENTIAL PAIRS; SUPERPOSED WEYL FIELDS; FLAT RINGS; GALAXIES; STABILITY; DISKS;
D O I
10.1142/S0218271811020305
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Relativistic thick ring models are constructed using previously found analytical Newtonian potential-density pairs for flat rings and toroidal structures obtained from Kuzmin-Toomre family of disks. In particular, we present systems with one ring, two rings and a disk with a ring. Also, the circular velocity of a test particle and its stability when performing circular orbits are presented in all these models. In general, we find that regions of non-stability appear between the rings when they become thinner.
引用
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页码:2291 / 2304
页数:14
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