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Observational properties of a Schwarzschild black hole surrounded by a Dehnen-type dark matter halo

文献类型：期刊论文

作者Li Z(李志)2,3,4; Yu, Jiancheng1
刊名EUROPEAN PHYSICAL JOURNAL C
出版日期2025-10-19
卷号85期号:10
ISSN号1434-6044
DOI10.1140/epjc/s10052-025-14911-6
产权排序第1完成单位
文献子类Article
英文摘要This study investigates the accretion process and observational signatures of thin accretion disks around a Schwarzschild black hole (BH) embedded in a Dehnen-type dark matter (DM) halo. We examine the influence of the density rho s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\rho _{s}$$\end{document} and radius rs\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$r_{s}$$\end{document} of the DM halo on key disk properties, including the energy flux, temperature distribution, and emission spectrum. Our results show that all three of these quantities decrease with increasing rho s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\rho _{s}$$\end{document} or rs.\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$r_{s}.$$\end{document} Furthermore, by generating and analyzing both direct and secondary images of the accretion disk, we explore how the observational inclination angle and the DM halo parameters rho s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\rho _{s}$$\end{document} and rs\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$r_{s}$$\end{document} affect image profiles. Finally, the observed flux distributions are presented for different inclination angles. Our findings indicate that the accretion disk becomes colder and dimmer as the DM halo parameters increase, highlighting the significant role of DM in shaping BH observables.
学科主题天文学 ; 天体物理学 ; 高能天体物理学
URL标识查看原文
出版地ONE NEW YORK PLAZA, SUITE 4600, NEW YORK, NY, UNITED STATES
WOS关键词ACCRETION DISKS ; ROTATION ; IMAGE
资助项目National Natural Science Foundation of China[2021YFA1600400/2021YFA1600402]; National Key R&D Program of China[12133011]; National Key R&D Program of China[12288102]; National Natural Science Foundation of China[202302AN360001]; International Centre of Supernovae, Yunnan Key Laboratory
WOS研究方向Physics
语种英语
WOS记录号WOS:001595911600002
出版者SPRINGER
资助机构National Natural Science Foundation of China[2021YFA1600400/2021YFA1600402] ; National Key R&D Program of China[12133011, 12288102] ; National Natural Science Foundation of China[202302AN360001] ; International Centre of Supernovae, Yunnan Key Laboratory
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28659]  
专题云南天文台_恒星物理研究组
通讯作者Li Z(李志)
作者单位1.College of Physics, Guizhou University, Guiyang, 550025, China
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, People’s Republic of China;
3.Key Laboratory for Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650216, People’s Republic of China;
4.International Centre of Supernovae, Yunnan Key Laboratory, Kunming, 650216, People’s Republic of China;
推荐引用方式
GB/T 7714		 Li Z,Yu, Jiancheng. Observational properties of a Schwarzschild black hole surrounded by a Dehnen-type dark matter halo[J]. EUROPEAN PHYSICAL JOURNAL C,2025,85(10).
APA 李志,&Yu, Jiancheng.(2025).Observational properties of a Schwarzschild black hole surrounded by a Dehnen-type dark matter halo.EUROPEAN PHYSICAL JOURNAL C,85(10).
MLA 李志,et al."Observational properties of a Schwarzschild black hole surrounded by a Dehnen-type dark matter halo".EUROPEAN PHYSICAL JOURNAL C 85.10(2025).

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来源：云南天文台

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