Search for AGNs in Dwarf Galaxies in the the M81 Field with INTEGRAL Data

被引:2
作者
Mereminskiy, I. A. [1 ]
Sazonov, S. Yu. [1 ]
Krivonos, R. A. [1 ]
Karachentsev, I. D. [2 ]
机构
[1] Russian Acad Sci, Space Res Inst, Moscow 117997, Russia
[2] Russian Acad Sci, Special Astrophys Observ, Nizhnii Arkhyz 369167, Karachai Cherke, Russia
来源
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 2023年 / 49卷 / 01期
关键词
sky surveys; X-ray sources; AGNs; ACTIVE GALACTIC NUCLEI; BLACK-HOLES; STELLAR MASS; RAY; LUMINOSITY;
D O I
10.1134/S1063773723010048
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
long-term INTEGRAL hard X-ray observations, we have put upper limits on the bolometric luminosity (Lbol < 1041 erg s-1) of the nuclei of 72 nearby dwarf galaxies located in the M81 field. This has allowed us to constrain the fraction of galaxies in which the central black hole accretes matter at a rate above 0.1% of the critical one. Under simple assumptions about the distributions of black hole masses and accretion rates this fraction does not exceed 9%. Reliable estimates of the central black hole masses are required to obtain more stringent constraints on the fraction of AGNs.
引用
收藏
页码:1 / 8
页数:8
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