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arXiv 2512.08804gr-qc
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测地动力学与多倾角图像的非最小耦合黑洞及其薄吸积盘

Geodesic dynamics and multi-inclination images of a non-minimally coupled black hole with a thin accretion disk

Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University(扬州大学物理科学与技术学院引力与宇宙学中心);School of Science, Jiangsu University of Science and Technology(江苏科技大学理学院)

Tian-Yu Chen, Yong-Zhuang Li, Xiao-Mei Kuang

AI总结:

研究非最小耦合黑洞的测地动力学和多倾角图像特性,发现其ISCO和光球性质依赖于非最小耦合参数,且图像强度弱于Schwarzschild和Reissner-Nordström黑洞。

摘要:

在本文中,我们研究了在非最小Einstein-杨-米尔斯理论中,由薄吸积盘照亮的黑洞的光学特性。在我们的设定中,物质在外侧最稳定圆轨道(ISCO)之外遵循稳定的圆轨道,而在ISCO内部,物质迅速坠入黑洞。通过分析质量体和无质量粒子的轨道动力学,我们发现ISCO和光球的性质显著依赖于非最小耦合参数。此外,与Schwarzschild和Reissner-Nordström黑洞相比,非最小耦合扩展了影响参数的范围,并略微增强了图像中的红移效应。此外,由于非最小耦合参数对事件视界有显著影响,所选发射模型下观测到的该黑洞图像的强度最终比其他两种黑洞的强度要弱,无论吸积盘与观测平面之间的倾角如何。

英文摘要:

In this paper, we investigate the optical properties of a black hole in non-minimal Einstein-Yang-Mills theory, illuminated by a thin accretion disk. In our setup, matter follows stable circular orbits outside the innermost stable circular orbit (ISCO), while inside the ISCO, it rapidly plunges into the black hole. By analyzing the orbital dynamics of massive and massless particles, we find that the properties of both the ISCO and the photon sphere significantly depend on the non-minimal coupling parameter. Moreover, compared with the Schwarzschild and Reissner-Nordström black holes, the non-minimal coupling extends the range of the impact parameter and slightly enhances the redshift effect in the images. Additionally, due to the significant influence of the non-minimal coupling parameter on the event horizon, the observed intensity of this black hole image under the selected emission model ultimately turns out to be weaker than that of the other two types of black holes, regardless of the inclination angle between the accretion disk and observation planes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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