Determination of supermassive black hole spins in active galactic nuclei

被引：2
作者：
Piotrovich, M. Yu [1 ]
Afanasiev, V. L. [2 ]
Buliga, S. D. [1 ]
Natsvlishvili, T. M. [1 ]
机构：
[1] Cent Astron Observ Pulkovo, St Petersburg 196140, Russia
[2] Special Astrophys Observ, Zelenchukskiy Reg 369167, Karachai Cherke, Russia
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2020年 / 35卷 / 2-3期
关键词：
Black holes; accretion; polarization; ACCRETION; EXTRACTION; EVOLUTION; ENERGY;
D O I：
10.1142/S0217751X20400540
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Based on spectropolarimetry for a number of active galactic nuclei in Seyfert 1 type galaxies observed with the 6-m BTA telescope, we have estimated the spins of the supermassive black holes at the centers of these galaxies. We have determined the spins based on the standard Shakura-Sunyaev accretion disk model. More than 70% of the investigated active galactic nuclei are shown to have Kerr supermassive black holes with a dimensionless spin greater than 0.9.
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页数：5
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