General relativistic model for the gravitational field of active galactic nuclei surrounded by a disk

被引：7
|
作者：
Vogt, D [1 ]
Letelier, PS
机构：
[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil
[2] Univ Estadual Campinas, IMECC, Dept Matemat Aplicada, BR-13083970 Campinas, SP, Brazil
来源：
PHYSICAL REVIEW D | 2005年 / 71卷 / 04期
关键词：
D O I：
10.1103/PhysRevD.71.044009
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
An exact but simple general relativistic model for the gravitational field of active galactic nuclei is constructed, based on the superposition in Weyl coordinates of a black hole, a Chazy-Curzon disk and two rods, which represent matter jets. The influence of the rods on the matter properties of the disk and on its stability is examined. We find that in general they contribute to destabilize the disk. Also the oscillation frequencies for perturbed circular geodesics on the disk are computed, and some geodesic orbits for the superposed metric are numerically calculated.
引用
收藏
页码：044009 / 1
页数：10
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