Probing Einstein–Maxwell-scalar black hole via thin accretion disks and shadows with EHT observations of M87* and Sgr A*

IF 4.8 2区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS

The European Physical Journal C Pub Date : 2025-09-30 DOI:10.1140/epjc/s10052-025-14831-5

Yingdong Wu, Ziqiang Cai, Zhenglong Ban, Haiyuan Feng, Wei-Qiang Chen

引用次数: 0

Abstract

We investigated the shadows and thin accretion disks of Einstein–Maxwell-Scalar (EMS) black hole. Firstly, we investigated the influence of EMS parameters on the black hole shadow using the null geodesic method and constrained these parameters based on EHT observations of M87* and Sgr A*. Furthermore, we analyzed the direct emission, lensing ring, and photon ring structures in EMS black hole. Comparing our results with the Schwarzschild and Reissner–Nordstr\(\ddot{\textrm{o}}\)m (RN) black holes, we found that the Schwarzschild black hole exhibits the largest shadow radius and the highest observed intensity.

查看原文本刊更多论文

用EHT观测M87*和Sgr A*，通过薄吸积盘和阴影探测爱因斯坦-麦克斯韦标量黑洞

研究了爱因斯坦-麦克斯韦-标量（EMS）黑洞的阴影和薄吸积盘。首先，基于M87*和Sgr A*的EHT观测数据，利用零测地线方法研究了EMS参数对黑洞阴影的影响，并对这些参数进行了约束。此外，我们还分析了EMS黑洞的直接发射、透镜环和光子环结构。将我们的结果与史瓦西黑洞和Reissner-Nordstr \(\ddot{\textrm{o}}\) m （RN）黑洞进行比较，我们发现史瓦西黑洞具有最大的阴影半径和最高的观测强度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

The European Physical Journal C 物理-物理：粒子与场物理

CiteScore

8.10

自引率

15.90%

发文量

1008

审稿时长

2-4 weeks

期刊介绍： Experimental Physics I: Accelerator Based High-Energy Physics Hadron and lepton collider physics Lepton-nucleon scattering High-energy nuclear reactions Standard model precision tests Search for new physics beyond the standard model Heavy flavour physics Neutrino properties Particle detector developments Computational methods and analysis tools Experimental Physics II: Astroparticle Physics Dark matter searches High-energy cosmic rays Double beta decay Long baseline neutrino experiments Neutrino astronomy Axions and other weakly interacting light particles Gravitational waves and observational cosmology Particle detector developments Computational methods and analysis tools Theoretical Physics I: Phenomenology of the Standard Model and Beyond Electroweak interactions Quantum chromo dynamics Heavy quark physics and quark flavour mixing Neutrino physics Phenomenology of astro- and cosmoparticle physics Meson spectroscopy and non-perturbative QCD Low-energy effective field theories Lattice field theory High temperature QCD and heavy ion physics Phenomenology of supersymmetric extensions of the SM Phenomenology of non-supersymmetric extensions of the SM Model building and alternative models of electroweak symmetry breaking Flavour physics beyond the SM Computational algorithms and tools...etc.