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 ∼15.03(h−1Gpc)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.
@article{arxiv.2007.00226,
title = {New Probes of Large Scale Structure},
author = {Peikai Li and Rupert A. C. Croft and Scott Dodelson},
journal= {arXiv preprint arXiv:2007.00226},
year = {2021}
}