吸积流和膨胀电荷对爱因斯坦-麦克斯韦膨胀黑洞成像的影响

IF 6.4 1区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY
Gang Chen, Sen Guo, Jia-Shuo Li, Yu-Xiang Huang, Li-Fang Li, Peng Xu
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引用次数: 0

摘要

本文研究了爱因斯坦-麦克斯韦-稀拉顿(EMD)黑洞的特征和图像,重点是它们的有效势能、光子轨迹以及具有薄和厚吸积盘的图像。我们发现,随着稀释子电荷的增加,阴影和光子球半径都会减小。随着观测倾角的增加,直接图像和辅助图像变得截然不同,直接图像呈帽子状。模拟结果表明,静态球形吸积流的阴影和光子环亮度要高于内陷流。研究还表明,在薄盘吸积流中,直接发射主要影响观测到的光度,而光子环发射则不太重要。此外,黑洞图像的外观随观测者的倾角而变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influences of accretion flow and dilaton charge on the images of Einstein-Maxwell-dilation black holes

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.

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来源期刊
Science China Physics, Mechanics & Astronomy
Science China Physics, Mechanics & Astronomy PHYSICS, MULTIDISCIPLINARY-
CiteScore
10.30
自引率
6.20%
发文量
4047
审稿时长
3 months
期刊介绍: Science China Physics, Mechanics & Astronomy, an academic journal cosponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China, and published by Science China Press, is committed to publishing high-quality, original results in both basic and applied research. Science China Physics, Mechanics & Astronomy, is published in both print and electronic forms. It is indexed by Science Citation Index. Categories of articles: Reviews summarize representative results and achievements in a particular topic or an area, comment on the current state of research, and advise on the research directions. The author’s own opinion and related discussion is requested. Research papers report on important original results in all areas of physics, mechanics and astronomy. Brief reports present short reports in a timely manner of the latest important results.
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