Influences of accretion flow and dilaton charge on the images of Einstein-Maxwell-dilation black holes
文献类型：期刊论文
| 作者 | Chen, Gang1; Guo, Sen2; Li, JiaShuo3; Huang, YuXiang3; Li LF(李丽仿)4; Xu P(徐鹏)4,5 |
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 68期号:6页码:1-16 |
| 关键词 | Medical Imaging black hole optical appearance thin disk thick disk |
| ISSN号 | 1674-7348 |
| DOI | 10.1007/s11433-024-2626-5 |
| 英文摘要 | The characteristics and images of Einstein-Maxwell-dilaton (EMD) black holes are examined in this paper, focusing on their effective potential, photon trajectories, and images with both thin and thick accretion disks. We find that the shadow and photon sphere radii decrease as the dilaton charge increases. As the observation inclination increases, the direct and secondary images become distinct, with the direct image appearing hat-shaped. Simulations indicate that the brightness of the shadow and photon ring is higher in static spherical accretion flows compared to infalling ones. The study also shows that in thin disk accretion flows, direct emission predominantly influences the observed luminosity, while photon ring emission is less significant. Additionally, the appearance of black hole images varies with the observer’s inclination angle. |
| 分类号 | 一类 |
| 语种 | 英语 |
| WOS记录号 | WOS:001451028300002 |
| 其他责任者 | Guo S，李丽仿 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/101459]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 作者单位 | 1.重庆工商大学; 2.重庆师范大学; 3.西华师范大学; 4.中国科学院力学研究所; 5.兰州大学 |
| 推荐引用方式 GB/T 7714 | Chen, Gang,Guo, Sen,Li, JiaShuo,et al. Influences of accretion flow and dilaton charge on the images of Einstein-Maxwell-dilation black holes[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2025,68(6):1-16. |
| APA | Chen, Gang,Guo, Sen,Li, JiaShuo,Huang, YuXiang,李丽仿,&徐鹏.(2025).Influences of accretion flow and dilaton charge on the images of Einstein-Maxwell-dilation black holes.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,68(6),1-16. |
| MLA | Chen, Gang,et al."Influences of accretion flow and dilaton charge on the images of Einstein-Maxwell-dilation black holes".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 68.6(2025):1-16. |
入库方式： OAI收割
来源：力学研究所
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