论文标题
大规模结构的新探针
New Probes of Large Scale Structure
论文作者
论文摘要
这是我们提出一种使用小规模扰动信息间接测量大规模结构的方法中的第二篇论文。这个想法是通过小型模式构建一个二次估计器，该模式在大尺度上提供结构图。我们在第一篇论文中证明了二次估计器在仅$ z = 0 $的快照上仅在黑色n体模拟上运行良好。在这里，我们将该理论推广到了一个未考虑的非潜线区域的光锥光环目录。我们成功地将二次估算器的广义版本应用于基于卷$ \ sim15.03 \的n体仿真的光锥光环目录，（h^{ - 1} \，\ rm gpc）^3 $。光锥中最遥远的点的红移为$ 1.42 $，表明我们方法适用于下一代星系调查。
This is the second paper in a series where we propose a method of indirectly measuring large scale structure using information from small scale perturbations. The idea is to build a quadratic estimator from small scale modes that provides a map of structure on large scales. We demonstrated in the first paper that the quadratic estimator works well on a dark-matter-only N-body simulation at a snapshot of $z=0$. Here we generalize the theory to the case of a light cone halo catalog with a non-cubic region taken into consideration. We successfully apply the generalized version of the quadratic estimator to the light cone halo catalog based on an N-body simulation of volume $\sim15.03\,(h^{-1}\,\rm Gpc)^3$. The most distant point in the light cone is at a redshift of $1.42$, indicating the applicability of our method to next generation of galaxy surveys.
