论文标题
天窗：一种新的代码，用于任意空间中的一般性射线追踪和辐射转移
Skylight: a new code for general-relativistic ray-tracing and radiative transfer in arbitrary spacetimes
论文作者
论文摘要
为了重现所观察到的光谱和光曲线，起源于紧凑物体附近，需要准确的相对论射线追踪代码。在这项工作中，我们介绍了Skylime，这是一种新的数值代码，用于在任意时空几何和坐标系中进行通用射线追踪和辐射传递。该代码能够从遥远的观察者看到的紧凑物体的天体物理模型中产生图像，光谱和光曲线。我们结合了两种不同的方案，即蒙特卡洛辐射转移，从天体物理区域到遥远的观察者整合了地球化学，以及从观察者到发射区域的倒数整合的摄像机技术。该代码通过成功通过几个测试用例进行验证，其中包括：薄积聚磁盘和中子星热点排放。
To reproduce the observed spectra and light curves originated in the neighborhood of compact objects requires accurate relativistic ray-tracing codes. In this work, we present Skylight, a new numerical code for general-relativistic ray tracing and radiative transfer in arbitrary space-time geometries and coordinate systems. The code is capable of producing images, spectra, and light curves from astrophysical models of compact objects as seen by distant observers. We incorporate two different schemes, namely Monte Carlo radiative transfer, integrating geodesics from the astrophysical region to distant observers, and camera techniques with backwards integration from the observer to the emission region. The code is validated by successfully passing several test cases, among them: thin accretion disks and neutron star hot spot emission.
