An Accretion Disk without Angular Momentum Near a Black Hole

被引:0
作者
Beskin, V. S. [1 ]
Zheltoukhov, A. A. [1 ]
Pariev, V. I. [2 ]
机构
[1] Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia
[2] Korea Astron & Space Sci Inst, Taejon 305348, South Korea
基金
俄罗斯基础研究基金会;
关键词
WINDS;
D O I
10.1134/S1063772912010015
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have studied the two-dimensional structure of an accretion disk without angular momentum near a black hole using the Grad-Shafranov equation. When the two-dimensional structure of the flow is systematically taken into account, the singularity of the hydrodynamic equations is located at the sonic surface, rather than at a displaced surface, as occurs when the disk thickness is estimated using the standard technique. A transonic flow can also exist for negative energies, which is not possible when the accretion is strictly radial. DOI: 10.1134/S1063772912010015
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页码:1 / 8
页数:8
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