Dark Energy Survey Year 3 results: cosmology with moments of weak lensing mass maps - validation on simulations

M. Gatti; C. Chang; O. Friedrich; B. Jain; D. Bacon; M. Crocce; J. DeRose; Ferrero; P. Fosalba; E. Gaztanaga; D. Gruen; Harrison; N. Jeffrey; N. MacCrann; T. McClintock; L. Secco; L. Whiteway; T. M. C. Abbott; S. Allam; J. Annis; S. Avila; D. Brooks; E. Buckley-Geer; D. L. Burke; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; R. Cawthon; L. N. da Costa; J. De Vicente; S. Desai; H. T. Diehl; P. Doel; T. F. Eifler; J. Estrada; S. Everett; A. E. Evrard; J. Frieman; J. Garcia-Bellido; D. W. Gerdes; R. A. Gruendl; J. Gschwend; G. Gutierrez; D. J. James; M. D. Johnson; E. Krause; K. Kuehn; M. Lima; M. A. G. Maia; M. March; J. L. Marshall; P. Melchior; F. Menanteau; R. Miquel; A. Palmese; F. Paz-Chinchon; A. A. Plazas; C. Sanchez; E. Sanchez; Scarpine; M. Schubnell; S. Santiago; Sevilla-Noarbe; M. Smith; M. Soares-Santos; E. Suchyta; M. E. C. Swanson; G. Tarle; D. Thomas; M. A. Troxel; J. Zuntz; Des Collaboration

doi:10.1093/mnras/staa2680

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Dark Energy Survey Year 3 results: cosmology with moments of weak lensing mass maps - validation on simulations

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Dark Energy Survey Year 3 results: cosmology with moments of weak lensing mass maps - validation on simulations

M. Gatti, C. Chang, O. Friedrich, B. Jain, D. Bacon, M. Crocce, J. DeRose, Ferrero, P. Fosalba, E. Gaztanaga, …

Monthly notices of the Royal Astronomical Society, Vol.498(3), pp.4060-4087

11/01/2020

DOI: https://doi.org/10.1093/mnras/staa2680

Abstract

Astronomy & Astrophysics

Science & Technology

Physical Sciences

We present a simulated cosmology analysis using the second and third moments of the weak lensing mass (convergence) maps. The second moment, or variances, of the convergence as a function of smoothing scale contains information similar to standard shear two-point statistics. The third moment, or the skewness, contains additional non-Gaussian information. The analysis is geared towards the third year (Y3) data from the Dark Energy Survey (DES), but the methodology can be applied to other weak lensing data sets. We present the formalism for obtaining the convergence maps from the measured shear and for obtaining the second and third moments of these maps given partial sky coverage. We estimate the covariance matrix from a large suite of numerical simulations. We test our pipeline through a simulated likelihood analyses varying 5 cosmological parameters and 10 nuisance parameters and identify the scales where systematic or modelling uncertainties are not expected to affect the cosmological analysis. Our simulated likelihood analysis shows that the combination of second and third moments provides a 1.5 per cent constraint on S-8 = sigma(8)(Omega(m)/0.3)(0.5) for DES Year 3 data. This is 20 per cent better than an analysis using a simulated DESY3 shear two-point statistics, owing to the non-Gaussian information captured by the inclusion of higher order statistics. This paper validates our methodology for constraining cosmology with DESYear 3 data, whichwill be presented in a subsequent paper.

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Title: Dark Energy Survey Year 3 results: cosmology with moments of weak lensing mass maps - validation on simulations
Creators: M. Gatti - Institute for High Energy Physics
C. Chang - University of Chicago
O. Friedrich - University of Cambridge
B. Jain - University of Pennsylvania
D. Bacon - University of Portsmouth
M. Crocce - Inst Estudis Espacials Catalunya IEEC, E-08034 Barcelona, Spain
J. DeRose - Stanford University
Ferrero - University of Oslo
P. Fosalba - Institut d'Estudis Espacials de Catalunya
E. Gaztanaga - Institut d'Estudis Espacials de Catalunya
D. Gruen - Kavli Institute for Particle Astrophysics and Cosmology
Harrison - University of Manchester
N. Jeffrey - University College London
N. MacCrann - Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA
T. McClintock - Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
L. Secco - Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA
L. Whiteway - University College London
T. M. C. Abbott - Cerro Tololo Inter-American Observatory
S. Allam - Fermi National Accelerator Laboratory
J. Annis - Fermi National Accelerator Laboratory
S. Avila - Universidad Autónoma de Madrid
D. Brooks - University College London
E. Buckley-Geer - Fermi National Accelerator Laboratory
D. L. Burke - Kavli Institute for Particle Astrophysics and Cosmology
A. Carnero Rosell - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
M. Carrasco Kind - National Center for Supercomputing Applications
J. Carretero - Institute for High Energy Physics
R. Cawthon - University of Wisconsin–Madison
L. N. da Costa - Laboratório Interinstitucional de e-Astronomia
J. De Vicente - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
S. Desai - Indian Institute of Technology Hyderabad
H. T. Diehl - Fermi National Accelerator Laboratory
P. Doel - University College London
T. F. Eifler - University of Arizona
J. Estrada - Fermi National Accelerator Laboratory
S. Everett - Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
A. E. Evrard - University of Michigan
J. Frieman - Fermi National Accelerator Laboratory
J. Garcia-Bellido - Universidad Autónoma de Madrid
D. W. Gerdes - University of Michigan
R. A. Gruendl - National Center for Supercomputing Applications
J. Gschwend - Laboratório Interinstitucional de e-Astronomia
G. Gutierrez - Fermi National Accelerator Laboratory
D. J. James - Center for Astrophysics Harvard & Smithsonian
M. D. Johnson - National Center for Supercomputing Applications
E. Krause - University of Arizona
K. Kuehn - Lowell Observatory
M. Lima - Laboratório Interinstitucional de e-Astronomia
M. A. G. Maia - Laboratório Interinstitucional de e-Astronomia
M. March - University of Pennsylvania
J. L. Marshall - Mitchell Institute
P. Melchior - Princeton University
F. Menanteau - National Center for Supercomputing Applications
R. Miquel - Institució Catalana de Recerca i Estudis Avançats
A. Palmese - Fermi National Accelerator Laboratory
F. Paz-Chinchon - National Center for Supercomputing Applications
A. A. Plazas - Princeton University
C. Sanchez - University of Pennsylvania
E. Sanchez - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
Scarpine - Fermi National Accelerator Laboratory
M. Schubnell - University of Michigan
S. Santiago - Institut d'Estudis Espacials de Catalunya
Sevilla-Noarbe - Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain
M. Smith - University of Southampton
M. Soares-Santos - Brandeis University, Martin A. Fisher School of Physics
E. Suchyta - Oak Ridge National Laboratory
M. E. C. Swanson - National Center for Supercomputing Applications
G. Tarle - Institute for High Energy Physics
D. Thomas - University of Portsmouth
M. A. Troxel - Duke University
J. Zuntz - UK Astronomy Technology Centre
Des Collaboration
Publication Details: Monthly notices of the Royal Astronomical Society, Vol.498(3), pp.4060-4087
Publisher: Oxford Univ Press
Number of pages: 28
Grant note: University of Edinburgh University of Chicago U.S. Department of Energy; United States Department of Energy (DOE) Kavli Institute of Cosmological Physics at the University of Chicago Lawrence Berkeley National Laboratory; United States Department of Energy (DOE) Ministerio da Ciencia, Tecnologia e Inovacao; Spanish Government Ministry of Science and Education of Spain; Spanish Government Institut de Ciencies de l'Espai (IEEC/CSIC) ST/R000972/1; ST/M001229/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) Ohio State University
Identifiers: 9924552850801921
Academic Unit: Martin A. Fisher School of Physics
Language: English
Resource Type: Journal article

Dark Energy Survey Year 3 results: cosmology with moments of weak lensing mass maps - validation on simulations

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