等离子体中镝莫德马克斯黑洞周围的弱引力透镜效应

IF 2.4 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Communications in Theoretical Physics Pub Date : 2024-08-21 DOI:10.1088/1572-9494/ad6853

Ziyodulla Turakhonov, Farruh Atamurotov, Ali Övgün, Ahmadjon Abdujabbarov, Sunnatillo Urinov

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引用次数: 0

摘要

在这项研究中，我们考察了弱引力透镜效应，并确定了Dyonic ModMax（DM）时空中黑洞周围的阴影半径，同时还考虑了等离子体分布不均匀的模型。通过分析各种引力透镜模型，我们比较了等离子体内引力效应和等离子体不均匀性对真空透镜的修正，发现这些效应可以在星系团内的热气体中观测到。我们从DM黑洞周围的光子轨道入手，研究了阴影和弱引力透镜现象。利用事件地平线望远镜对M87*和SgrA*的观测数据，我们对DM引力中的参数进行了约束。为了将我们的发现与观测结果联系起来，我们研究了透镜图像的放大率和定位，以及不同星系附近光源的弱偏转角和放大率。

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Weak gravitational lensing around dyonic ModMax black hole in plasma

In this study, we examine the effects of weak gravitational lensing and determine the shadow radius around black holes within the Dyonic ModMax (DM) spacetime, also accounting for models with nonuniform plasma distributions. By analyzing various gravitational lens models, we compare corrections to vacuum lensing due to gravitational effects within plasma and plasma inhomogeneity, finding that these effects could be observed in hot gas within galaxy clusters. Starting with the orbits of photons around a black hole in DM, we investigate the shadow and weak gravitational lensing phenomena. Utilizing observational data from the Event Horizon Telescope for M87* and SgrA*, we constrain parameters within DM gravity. To connect our findings to observations, we examine the magnification and positioning of lensed images, along with the weak deflection angle and magnification for sources near different galaxies.

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来源期刊

Communications in Theoretical Physics 物理-物理：综合

CiteScore

5.20

自引率

3.20%

发文量

6110

审稿时长

4.2 months

期刊介绍： Communications in Theoretical Physics is devoted to reporting important new developments in the area of theoretical physics. Papers cover the fields of: mathematical physics quantum physics and quantum information particle physics and quantum field theory nuclear physics gravitation theory, astrophysics and cosmology atomic, molecular, optics (AMO) and plasma physics, chemical physics statistical physics, soft matter and biophysics condensed matter theory others Certain new interdisciplinary subjects are also incorporated.