论文标题
一种快速算法，用于模拟由微透明影响的极端放大恒星的光曲线
A fast algorithm for simulating light curves of stars at extreme magnification affected by microlensing
论文作者
论文摘要
我们提出了一种快速算法，以产生在临界曲线附近进行微透明的远处恒星的光曲线。这些类型的算法的需求是由于最近在高红移和极端放大因子处观察到远处恒星的微透镜事件的动机。该算法依赖于临界曲线附近的微晶体集合而对偏转场的低分辨率计算，并利用偏转场缓慢变化的性质来推断未解决的图像的放大倍率。
We present a fast algorithm to produce light curves of distant stars undergoing microlensing near critical curves. The need of these type of algorithms is motivated by recent observations of microlensing events of distant stars at high redshift and at extreme magnification factors. The algorithm relies on a low-resolution computation of the deflection field due to an ensemble of microlenses near critical curves, and takes advantage of the slowly varying nature of the deflection field to infer the magnification of the unresolved images.
