AI 中文总结
构建含厚盘、高斯凸起及局域发射区的解析多组分吸积环境，应用于克尔黑洞成像模拟，验证模型有效性并揭示新型观测特征，为弯曲时空吸积建模提供解析框架。
AI 中文摘要
吸积环境的构建是黑洞成像的基础。从纯几何角度出发，我们构建了一种新型解析性吸积环境，包含几何厚盘、具有高斯分布轮廓的环状凸起，以及由高斯分布建模的局域致密发射区。该环境具有高度灵活性，可独立调整盘厚度、垂直结构，以及局域斑点的位置和形态，从而能定性模拟高能天体物理现象。将该模型应用于克尔（Kerr）时空，我们通过辐射转移和光线追踪模拟研究了所得图像。结果验证了我们的吸积模型的有效性，并揭示了多组分照射下克尔黑洞的新型观测特征，包括多个亮斑和弧状结构。本工作为弯曲时空中的吸积建模提供了便捷且完全解析性的框架，为从图像特征推断吸积机制和瞬态高能过程提供了新视角。
英文摘要
The construction of accretion environments is fundamental to black hole imaging. From a purely geometric perspective, we construct a novel analytic accretion environment comprising a geometrically thick disk, ring-like bumps with a Gaussian profile, and localized compact emission regions modeled by Gaussian distributions. This environment offers high flexibility, enabling independent adjustments of disk thickness, vertical structure, and the positions and morphologies of localized spots, thereby allowing it to qualitatively mimic high-energy astrophysical phenomena. Applying this model to the Kerr spacetime, we investigate the resulting images via radiative transfer and ray-tracing simulations. The results validate the effectiveness of our accretion model and reveal novel observational signatures of Kerr black holes under multi-component illumination, including multiple bright spots and arc-like structures. This work provides a convenient and fully analytic framework for modeling accretion in curved spacetimes, and offers a new perspective on inferring accretion mechanisms and transient high-energy processes from image features.
Comments29 pages, 17 figures
