光锥上直至二阶的观测星系数计数：I. 主要结果
宇宙学与河外天体物理
2016-06-28 v5
摘要
我们提出了在宇宙学尺度上，针对一致性模型在红移空间中直至二阶的星系数过密度。该结果包含了所有源于过去光锥观测的直至二阶的广义相对论效应，包括所有红移效应、由会聚和剪切引起的透镜畸变，以及来自速度、Sachs-Wolfe、积分 Sachs-Wolfe 和时间延迟项的贡献。这一结果对于准确计算由非线性投影效应引入的非高斯性估计偏差以及精密参数估计偏差至关重要。
引用
@article{arxiv.1405.4403,
title = {Observed galaxy number counts on the lightcone up to second order: I. Main result},
author = {Daniele Bertacca and Roy Maartens and Chris Clarkson},
journal= {arXiv preprint arXiv:1405.4403},
year = {2016}
}
备注
7 pages, 1 figure. In the previous v4 (and in the published paper), we mistakenly omitted some post-Born terms. This error has been corrected here and in the companion paper 1406.0319v4. Our results are now in agreement, in the appropriate limit, with those of arXiv:1606.02113