Weak lensing magnification in the dark energy survey science verification data

The DES Collaboration

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20 Scopus citations

Abstract

In this paper, the effect of weak lensing magnification on galaxy number counts is studied bycross-correlating the positions of two galaxy samples, separated by redshift, using the DarkEnergy Survey Science Verification data set. This analysis is carried out for galaxies that areselected only by its photometric redshift. An extensive analysis of the systematic effects, usingnew methods based on simulations is performed, including a Monte Carlo sampling of theselection function of the survey.

Original languageEnglish
Pages (from-to)1071-1085
Number of pages15
JournalMonthly Notices of the Royal Astronomical Society
Volume476
Issue number1
DOIs
StatePublished - May 1 2018

Funding

The DES data management system is supported by the National Science Foundation under Grant Number AST-1138766. The DES participants from Spanish institutions are partially supported by MINECO under grants AYA2012-39559, ESP2013-48274, FPA2015-68048, and Centro de Excelencia Severo Ochoa SEV-2012-0234 and María de Maeztu MDM-2015-0509. Research leading to these results has received funding from the European Research Council under the European Unions Seventh Framework Programme (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Finan-ciadora de Estudos e Projetos, Fundac¸ão Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico and the Ministério da Ciência, Tecnologia e Inovac¸ão, the Deutsche Forschungsgemein-schaft, and the Collaborating Institutions in the DES.

FundersFunder number
Centro de Excelencia Severo OchoaMDM-2015-0509, SEV-2012-0234
Deutsche Forschungsgemein-schaft
FP7/2007
Kavli Institute of Cosmological Physics at the University of Chicago
Ministry of Science and Education of Spain
Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University
National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign
U.S. National Science Foundation
National Science FoundationAST-1138766
National Science Foundation
U.S. Department of Energy
Seventh Framework Programme1138766, 240672, 306478, 291329
Seventh Framework Programme
Higher Education Funding Council for England
Center for Cosmology and Astroparticle Physics, Ohio State University
Science and Technology Facilities Council
European Research Council
Ministerio de Economía y CompetitividadAYA2012-39559, ESP2013-48274, FPA2015-68048
Ministerio de Economía y Competitividad
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Financiadora de Estudos e Projetos
Seventh Framework Programme
Ministério da Ciência e Tecnologia

    Keywords

    • Gravitational lensing: weak
    • Large-scale structure of Universe
    • Methods: data analysis
    • Techniques: photometric

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