标题： 揭示引力：洛伦兹规范理论中的黑洞阴影和透镜特征 显示英文标题

标题： Shedding Light on Gravity: Black Hole Shadows and Lensing Signatures in Lorentz Gauge Theory

摘要： 最近的进展，包括引力波探测和黑洞阴影的成像，已强烈验证了广义相对论。 然而，持续的宇宙学观测表明广义相对论可能存在局限性，这激发了对修改引力理论的兴趣。 本研究探讨了洛伦兹规范理论，这是一种替代的引力框架，为量子引力和宇宙学中的长期概念问题提供了有希望的解决方案。 通过分析黑洞阴影结构和引力透镜效应——包括弱偏转和强偏转区域——我们突出了洛伦兹规范引力的独特观测特征。 我们的研究结果为未来的观测测试提供了有价值的工具，可能将这些修改的引力模型与广义相对论区分开来，并推进我们对时空几何和基本引力相互作用的理解。 显示英文摘要

摘要： Recent advances, including gravitational wave detections and imaging of black hole shadows, have strongly validated general relativity. Nevertheless, ongoing cosmological observations suggest potential limitations of general relativity, spurring interest in modified theories of gravity. This study explores Lorentz gauge theory, an alternative gravitational framework offering promising solutions to longstanding conceptual issues in quantum gravity and cosmology. By analyzing black hole shadow structures and gravitational lensing effects-both weak and strong deflection regimes-we highlight unique observational signatures of Lorentz gauge gravity. Our findings provide valuable tools for future observational tests, potentially distinguishing these modified gravity models from general relativity and advancing our understanding of spacetime geometry and fundamental gravitational interactions.