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Title: N-point statistics of large-scale structure in the Zel'dovich approximation

Abstract

Motivated by the results presented in a companion paper, here we give a simple analytical expression for the matter n-point functions in the Zel'dovich approximation (ZA) both in real and in redshift space (including the angular case). We present numerical results for the 2-dimensional redshift-space correlation function, as well as for the equilateral configuration for the real-space 3-point function. We compare those to the tree-level results. Our analysis is easily extendable to include Lagrangian bias, as well as higher-order perturbative corrections to the ZA. The results should be especially useful for modelling probes of large-scale structure in the linear regime, such as the Baryon Acoustic Oscillations. We make the numerical code used in this paper freely available.

Authors:
 [1]
  1. Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544 (United States)
Publication Date:
OSTI Identifier:
22373530
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2014; Journal Issue: 06; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; APPROXIMATIONS; BARYONS; CORRECTIONS; CORRELATION FUNCTIONS; LAGRANGIAN FUNCTION; MATTER; RED SHIFT; SIMULATION; SPACE; STATISTICS

Citation Formats

Tassev, Svetlin. N-point statistics of large-scale structure in the Zel'dovich approximation. United States: N. p., 2014. Web. doi:10.1088/1475-7516/2014/06/012.
Tassev, Svetlin. N-point statistics of large-scale structure in the Zel'dovich approximation. United States. https://doi.org/10.1088/1475-7516/2014/06/012
Tassev, Svetlin. 2014. "N-point statistics of large-scale structure in the Zel'dovich approximation". United States. https://doi.org/10.1088/1475-7516/2014/06/012.
@article{osti_22373530,
title = {N-point statistics of large-scale structure in the Zel'dovich approximation},
author = {Tassev, Svetlin},
abstractNote = {Motivated by the results presented in a companion paper, here we give a simple analytical expression for the matter n-point functions in the Zel'dovich approximation (ZA) both in real and in redshift space (including the angular case). We present numerical results for the 2-dimensional redshift-space correlation function, as well as for the equilateral configuration for the real-space 3-point function. We compare those to the tree-level results. Our analysis is easily extendable to include Lagrangian bias, as well as higher-order perturbative corrections to the ZA. The results should be especially useful for modelling probes of large-scale structure in the linear regime, such as the Baryon Acoustic Oscillations. We make the numerical code used in this paper freely available.},
doi = {10.1088/1475-7516/2014/06/012},
url = {https://www.osti.gov/biblio/22373530}, journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 06,
volume = 2014,
place = {United States},
year = {Sun Jun 01 00:00:00 EDT 2014},
month = {Sun Jun 01 00:00:00 EDT 2014}
}