Super-sample covariance of the power spectrum, bispectrum, halos, voids, and their cross covariances

作者：Adrian E. Bayer, Jia Liu, Ryo Terasawa, Alexandre Barreira, Yici Zhong, Yu Feng · 发表于：Physical review. D/Physical review. D. · 年份：2023 · DOI：10.1103/physrevd.108.043521 · 被引用次数：16 · 研究领域：Galaxies: Formation, Evolution, Phenomena、Astrophysics and Cosmic Phenomena、Radio Astronomy Observations and Technology

The authors study the super-sample covariance (SSC) on higher-order statistics which are becoming standard tools for cosmological inferences from the non-linear small-scale regime of the cosmic structure. To this end, they compare small box sizes of simulations with those embedded in larger simulations that include SCC modes that are cut off by the small boxes. It is observed that these finite-size effects have to be taken into account in future cosmological analyses.