Wormhole solutions in dRGT gravity via Ultra-Diffuse Galaxies and Navarro–Frenk–White Dark halos using galactic rotation curve

IF 6.4 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Physics of the Dark Universe Pub Date : 2025-07-21 DOI:10.1016/j.dark.2025.102019

Sourav Chaudhary , S.K. Maurya , Jitendra Kumar

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引用次数: 0

Abstract

This work explores wormhole formation in galactic halos using dRGT gravity, considering two dark matter profiles: Ultra-Diffuse Galaxies (UDG) and the Navarro–Frenk–White (NFW) model. Inspired by Rahaman et al. [ Can. J. Phys. 97, no.3, 241-247 (2019)], this work presents a detailed graphical investigation of the nature of exotic matter in the wormhole framework, alongside a condition-based energy assessment of the content of the matter. The derived shape functions of the wormhole geometry meet the necessary criteria in both cases. Our study presents a novel wormhole solution supported by dark matter, with the redshift and shape functions constructed from the UDG and NFW density profiles along with the corresponding rotational velocity. We observe that in Model I, NEC is violated in the region surrounding the wormhole throat, whereas in Model II, the violation is present throughout the entire wormhole configuration. In addition, we analyze the forces that maintain equilibrium in the system and use embedding diagrams to visualize the geometry of the wormhole. This study also investigates the properties of dimensionless anisotropy and exoticity. Our results suggest that dark matter may help sustain these structures, offering new perspectives on its influence in galactic dynamics.

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基于星系旋转曲线的超漫射星系和navarro - frank - white暗晕的dRGT引力虫洞解

这项工作利用dRGT引力探索了星系晕中虫洞的形成，考虑了两种暗物质剖面：超扩散星系（UDG）和纳瓦罗-弗兰克-怀特（NFW）模型。受Rahaman等人的启发。J.物理，97,no。[3,241 -247(2019)]，这项工作对虫洞框架中奇异物质的性质进行了详细的图形调查，同时对物质的含量进行了基于条件的能量评估。导出的虫孔几何形状函数满足两种情况下的必要条件。我们的研究提出了一种新的由暗物质支持的虫洞解决方案，并通过UDG和NFW密度曲线以及相应的旋转速度构建了红移和形状函数。我们观察到，在模型I中，NEC在虫洞喉部周围区域被破坏，而在模型II中，这种破坏存在于整个虫洞结构中。此外，我们分析了维持系统平衡的力，并使用嵌入图来可视化虫洞的几何形状。本研究还探讨了无量纲各向异性和异域性的性质。我们的研究结果表明，暗物质可能有助于维持这些结构，为研究暗物质对星系动力学的影响提供了新的视角。

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

Physics of the Dark Universe ASTRONOMY & ASTROPHYSICS-

CiteScore

9.60

自引率

7.30%

发文量

118

审稿时长

61 days

期刊介绍： Physics of the Dark Universe is an innovative online-only journal that offers rapid publication of peer-reviewed, original research articles considered of high scientific impact. The journal is focused on the understanding of Dark Matter, Dark Energy, Early Universe, gravitational waves and neutrinos, covering all theoretical, experimental and phenomenological aspects.