有效旋转黑洞双星透镜中焦散相遇的暗物质印记
Finite-source magnification residuals from a cNFW-inspired perturbation of an effective spinning black hole binary lens
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中文总结 AI 辅助
研究旋转真空双星模拟中有核暗物质校正能否留焦散痕迹,通过改变多种参数进行真空比较,最佳拟合是等质量共同自旋模型,给出了选定相遇的相关残差数据,是有效族内的数值演示。
中文摘要 AI 辅助
我们探讨了在允许旋转真空双星模拟的情况下,有核暗物质(DM)校正是否能留下可分辨的焦散痕迹。真空比较改变了透镜尺度、共同自旋、间距、质量比、投影自旋角以及在整个轨道上拟合的一个相位偏移。还测试了附近不相等的分量自旋和投影方向。最佳的高分辨率拟合仍然是等质量、共同自旋模型。在选定的相遇中,局部均方根残差为\(1.34\times10^{-2}\),最大残差为\(4.02\times10^{-2}\),对齐交叉偏移为\(1.51\times10^{-3}\)。附近分辨率给出\(1.50\times10^{-2}\),\(4.02\times10^{-2}\),以及\(1.82\times10^{-3}\)。检查了所有三个上升半响应交叉,选定事件不是最大的。这是在经过测试的有效族内的数值演示,而非观测声明或精确的双星时空计算。
英文摘要
We ask whether a cored-NFW-inspired radial perturbation leaves a finite-source magnification residual after refitting the best effective spinning vacuum binary. We compute the source flux by direct image-plane integration and vary the lens scale, separation, mass ratio, two spin magnitudes, two projected spin directions, and one phase shift. After refitting, the caustics and magnification curves are almost identical and the phase shift is nearly zero. Still, a structured residual remains. At the highest resolution, the full-orbit rms residual is $1.61\times10^{-2}$ and the maximum local residual is $4.41\times10^{-2}$. Increasing the grid from $800\times522$ to $1000\times653$ changes the full-orbit rms by only $3.39\times10^{-5}$. The residual also survives nine tests with Gaussian, uniform, and tapered sources at three RMS-size factors. Thus, a finite-source residual survives strong geometric degeneracy in this effective model. We do not claim a unique dark-matter detection or a prediction for a physically scaled binary.
发表机构
- Centro de Investigación en Ciencias del Espacio y Física Teórica (CICEF), Universidad Central de Chile(智利中央大学空间科学与理论物理研究中心)
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