Real-space density profile reconstruction of stacked voids - Archive ouverte HAL Access content directly
Journal Articles Monthly Notices of the Royal Astronomical Society Year : 2014

Real-space density profile reconstruction of stacked voids

(1) , (1) , (1) , (1)
1

Abstract

We present a non-parametric, model-independent method to reconstruct the spherical density profiles of void stacks in real space, without redshift-space distortions. Our method uses the expected spherical symmetry of stacked voids to build the shape of the spherical density profile of cosmic voids in real space without any assumption about the cosmological model. We test the reconstruction algorithm with a toy model, a dark matter simulation and a mock galaxy catalogue. We present the result for the simulations: the reconstruction of the spherical density profile for simulated stacked voids in real space. We also present a first application of the algorithm to reconstruct real cosmic void stacks density profiles in real space from the Sloan Digital Sky Survey. We discuss capabilities of the algorithm and possible future improvements. Reconstructed density profiles from real voids open the way to the study of the spherically averaged dynamical structure of voids.
Fichier principal
Vignette du fichier
stu1399.pdf (1.91 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

insu-03645273 , version 1 (25-04-2022)

Identifiers

Cite

A. Pisani, G. Lavaux, P. M. Sutter, B. D. Wandelt. Real-space density profile reconstruction of stacked voids. Monthly Notices of the Royal Astronomical Society, 2014, 443, pp.3238-3250. ⟨10.1093/mnras/stu1399⟩. ⟨insu-03645273⟩
6 View
5 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More