Measuring the growth of structure by matching dark matter haloes to galaxies with VIPERS and SDSS-Reference-Cited by-同舟云学术

Measuring the growth of structure by matching dark matter haloes to galaxies with VIPERS and SDSS

Published:2019-08-20 Issue:1 Volume:489 Page:653-662
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
Short-container-title:

Author:

Granett Benjamin R¹^ORCID,Favole Ginevra²^ORCID,Montero-Dorta Antonio D³,Branchini Enzo⁴⁵⁶,Guzzo Luigi¹⁷⁸,de la Torre Sylvain⁹

Affiliation:

1. Università degli Studi di Milano, via Celoria 16, I-20133 Milan, Italy

2. European Space Astronomy Centre (ESAC), E-28692 Villanueva de la Cañada, Madrid, Spain

3. Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, Rua do Matão 1371, CEP 05508-090 São Paulo, Brazil

4. Department of Mathematics and Physics, Roma Tre University, via della Vasca Navale 84, I-00146 Rome, Italy

5. INFN – Sezione di Roma Tre, via della Vasca Navale 84, I-00146 Rome, Italy

6. INAF – Osservatorio Astronomico di Roma, via Frascati 33, I-00040 Monte Porzio Catone (RM), Italy

7. INAF – Osservatorio Astronomico di Brera, via Brera 28, I-20122 Milan, and via E. Bianchi 46, I-20121 Merate, Italy

8. INFN – Sezione di Milano, via Celoria 16, I-20133 Milan, Italy

9. Aix Marseille Univ, CNRS, CNES, LAM, F-13013 Marseille, France

Abstract

ABSTRACT We test the history of structure formation from redshift 1 to today by matching galaxies from the VIMOS Public Extragalactic Redshift Survey (VIPERS) and Sloan Digital Sky Survey (SDSS) with dark matter haloes in the MultiDark, Small MultiDark Planck (SMDPL), N-body simulation. We first show that the standard subhalo abundance matching (SHAM) recipe implemented with MultiDark fits the clustering of galaxies well both at redshift 0 for SDSS and at redshift 1 for VIPERS. This is an important validation of the SHAM model at high redshift. We then remap the simulation time steps to test alternative growth histories and infer the growth index γ = 0.6 ± 0.3. This analysis demonstrates the power of using N-body simulations to forward model galaxy surveys for cosmological inference. The data products and code necessary to reproduce the results of this analysis are available online (https://github.com/darklight-cosmology/vipers-sham).

Funder

Fundação de Amparo à Pesquisa do Estado de São Paulo

European Space Agency

Agenzia Spaziale Italiana

Instituto Nazionale di Fisica Nucleare

New Mexico State University

Comisión Sectorial de Investigación Científica

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

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