Estimating the black hole mass of NGC1313 X-1 based on the spectral and timing properties

被引：0
|
作者：
Huang, C-Y [1 ]
机构：
[1] Yangtze Univ, Sch Phys & Optoelect Engn, Jingzhou 434023, Peoples R China
来源：
CONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO | 2019年 / 49卷 / 01期
基金：
中国国家自然科学基金;
关键词：
accretion; accretion disks; black hole physics; magnetic fields; stars: individual: NGC 1313 X-1; X-RAY SOURCE; MAGNETIC RECONNECTION; HFQPO PAIRS; ACCRETION; MODEL; PULSAR; CORONA; RADIO;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The discovery of 3:2 quasi-periodic oscillations (QPOs) in the ultra-luminous X-ray source NGC 1313 X-1 suggests it harbors an intermediate-mass black hole (IMBH). We test this numerically by modelling the 3:2 QPOs and the associated X-ray spectrum based on the epicyclic resonance model and a disk-corona model with large-scale magnetic fields generated by the Cosmic Battery mechanism. The combined QPO-frequency and spectral fitting indicates that the BH mass ranges from 2524 M-circle dot to 6811 M-circle dot confirming its IMBH nature, and the BH spin is probably higher than similar to 0.3.
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页码：7 / 18
页数：12
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