Strong lensing as a probe of braneworld

IF 5.3 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Journal of Cosmology and Astroparticle Physics Pub Date : 2024-11-19 DOI:10.1088/1475-7516/2024/11/028

Yi Zhang, Hong Liu, Dan Wen and Hongsheng Zhang

引用次数: 0

Abstract

For the first time, we use the Event Horizon Telescope (EHT) data to constrain the parameters of braneworld black holes which constrain ϵ = 0.0285+0.0888+0.1456-0.0895-0.1475 for the anisotropic black hole and q = -0.0305+0.1034+0.1953-0.0895-0.1470 for the tidal Reissner-Nordström (RN) black hole. Based on the fitted data and physical requirement, we calculate the photon deflection, the angular separation and time delay between different relativistic images of the anisotropic black hole and the tidal RN black hole in the ranges -0.1190 < ϵ < 0 and -0.1775 < q < 0. And furthermore, we study the quasinormal modes (QNMs) for the braneworld black holes. The results shed light on existence of extra dimension.

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强透镜作为支流世界的探测器

我们首次利用事件视界望远镜（EHT）的数据来约束支链世界黑洞的参数，其中各向异性黑洞的参数为ϵ = 0.0285+0.0888+0.1456-0.0895-0.1475，潮汐赖斯纳-诺德斯特伦（RN）黑洞的参数为q = -0.0305+0.1034+0.1953-0.0895-0.1470。根据拟合数据和物理要求，我们计算了各向异性黑洞和潮汐雷斯纳-诺德斯特伦（RN）黑洞在-0.1190 < ϵ < 0和-0.1775 < q < 0范围内不同相对论图像之间的光子偏转、角间隔和时间延迟。结果揭示了额外维度的存在。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理

CiteScore

10.20

自引率

23.40%

发文量

632

审稿时长

1 months

期刊介绍： Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.