Dark Energy Survey year 1 results: galaxy sample for BAO measurement

M. Crocce; A. J. Ross; I. Sevilla-Noarbe; E. Gaztanaga; J. Elvin-Poole; S. Avila; A. Alarcon; K. C. Chan; N. Banik; J. Carretero; E. Sanchez; W. G. Hartley; C. Sanchez; T. Giannantonio; R. Rosenfeld; A. I. Salvador; M. Garcia-Fernandez; J. Garcia-Bellido; T. M. C. Abbott; F. B. Abdalla; S. Allam; J. Annis; K. Bechtol; A. Benoit-Levy; G. M. Bernstein; R. A. Bernstein; E. Bertin; D. Brooks; E. Buckley-Geer; A. Carnero Rosell; M. Carrasco Kind; F. J. Castander; R. Cawthon; C. E. Cunha; C. B. D'Andrea; L. N. da Costa; C. Davis; J. De Vicente; S. Desai; H. T. Diehl; P. Doel; A. Drlica-Wagner; T. F. Eifler; P. Fosalba; J. Frieman; D. W. Gerdes; D. Gruen; R. A. Gruendl; J. Gschwend; G. Gutierrez; D. Hollowood; K. Honscheid; B. Jain; D. J. James; E. Krause; K. Kuehn; S. Kuhlmann; N. Kuropatkin; O. Lahav; M. Lima; M. A. G. Maia; J. L. Marshall; P. Martini; F. Menanteau; C. J. Miller; R. Miquel; R. C. Nichol; W. J. Percival; A. A. Plazas; M. Sako; V. Scarpine; R. Schindler; D. Scolnic; E. Sheldon; M. Smith; R. C. Smith; M. Soares-Santos; F. Sobreira; E. Suchyta; M. E. C. Swanson; G. Tarle; D. Thomas; D. L. Tucker; V. Vikram; A. R. Walker; B. Yanny; Y. Zhang; Dark Energy Survey Collaboration

doi:10.1093/mnras/sty2522

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Dark Energy Survey year 1 results: galaxy sample for BAO measurement

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Dark Energy Survey year 1 results: galaxy sample for BAO measurement

M. Crocce, A. J. Ross, I. Sevilla-Noarbe, E. Gaztanaga, J. Elvin-Poole, S. Avila, A. Alarcon, K. C. Chan, N. Banik, J. Carretero, …

Monthly notices of the Royal Astronomical Society, Vol.482(2), pp.2807-2822

01/11/2019

DOI: https://doi.org/10.1093/mnras/sty2522

Abstract

Astronomy & Astrophysics

Science & Technology

Physical Sciences

We define and characterize a sample of 1.3million galaxies extracted from the first year of Dark Energy Survey data, optimized to measure baryon acoustic oscillations (BAO) in the presence of significant redshift uncertainties. The sample is dominated by luminous red galaxies located at redshifts z greater than or similar to 0.6. We define the exact selection using colour and magnitude cuts that balance the need of high number densities and small photometric redshift uncertainties, using the corresponding forecasted BAO distance error as a figure-of-merit in the process. The typical photo z uncertainty varies from 2.3 per cent to 3.6 per cent (in units of 1+z) from z = 0.6 to 1, with number densities from 200 to 130 galaxies per deg(2) in tomographic bins of width Delta z = 0.1. Next, we summarize the validation of the photometric redshift estimation. We characterize and mitigate observational systematics including stellar contamination and show that the clustering on large scales is robust in front of those contaminants. We show that the clustering signal in the autocorrelations and cross-correlations is generally consistent with theoretical models, which serve as an additional test of the redshift distributions.

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Title: Dark Energy Survey year 1 results: galaxy sample for BAO measurement
Creators: M. Crocce - Institut d'Estudis Espacials de Catalunya
A. J. Ross - The Ohio State University
I. Sevilla-Noarbe - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
E. Gaztanaga - S&N
J. Elvin-Poole - The Ohio State University
S. Avila - University of Portsmouth
A. Alarcon - CSIC, Inst Space Sci ICE, IEEC, Campus UAB,Carrer Can Magrans S-N, E-08193 Barcelona, Spain
K. C. Chan - Institut d'Estudis Espacials de Catalunya
N. Banik - Fermi National Accelerator Laboratory
J. Carretero - Institute for High Energy Physics
E. Sanchez - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
W. G. Hartley - University College London
C. Sanchez - Barcelona Inst Sci & Technol, IFAE, Campus UAB, E-08193 Bellaterra, Barcelona, Spain
T. Giannantonio - University of Cambridge
R. Rosenfeld - Laboratório Interinstitucional de e-Astronomia
A. I. Salvador - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
M. Garcia-Fernandez - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
J. Garcia-Bellido - Universidad Autónoma de Madrid
T. M. C. Abbott - Cerro Tololo Inter-American Observatory
F. B. Abdalla - Rhodes University
S. Allam - Fermi National Accelerator Laboratory
J. Annis - Fermi National Accelerator Laboratory
K. Bechtol - University of Wisconsin–Madison
A. Benoit-Levy - UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England
G. M. Bernstein - University of Pennsylvania
R. A. Bernstein - Carnegie Observatories
E. Bertin - Centre National de la Recherche Scientifique
D. Brooks - University College London
E. Buckley-Geer - Fermi National Accelerator Laboratory
A. Carnero Rosell - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
M. Carrasco Kind - University of Illinois Urbana-Champaign
F. J. Castander - Institut d'Estudis Espacials de Catalunya
R. Cawthon - University of Wisconsin–Madison
C. E. Cunha - Stanford University
C. B. D'Andrea - Observ Carnegie Inst Washington, 813 Santa Barbara St, Pasadena, CA 91101 USA
L. N. da Costa - Laboratório Interinstitucional de e-Astronomia
C. Davis - University of Louisville
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
A. Drlica-Wagner - Fermi National Accelerator Laboratory
T. F. Eifler - Jet Propulsion Laboratory
P. Fosalba - Institut d'Estudis Espacials de Catalunya
J. Frieman - Fermi National Accelerator Laboratory
J. Garcia-Bellido - Fermi National Accelerator Laboratory
D. W. Gerdes - University of Michigan
D. Gruen - Kavli Institute for Particle Astrophysics and Cosmology
R. A. Gruendl - National Center for Supercomputing Applications
J. Gschwend - Laboratório Interinstitucional de e-Astronomia
G. Gutierrez - Fermi National Accelerator Laboratory
D. Hollowood - University of California, Santa Cruz
K. Honscheid - The Ohio State University
B. Jain - University of Pennsylvania
D. J. James - Center for Astrophysics Harvard & Smithsonian
E. Krause - University of Arizona
K. Kuehn - Australian Astronomical Observatory
S. Kuhlmann - Argonne National Laboratory
N. Kuropatkin - Fermi National Accelerator Laboratory
O. Lahav - University College London
M. Lima - Laboratório Interinstitucional de e-Astronomia
M. A. G. Maia - Laboratório Interinstitucional de e-Astronomia
J. L. Marshall - Mitchell Institute
P. Martini - The Ohio State University
F. Menanteau - National Center for Supercomputing Applications
C. J. Miller - University of Michigan
R. Miquel - Institució Catalana de Recerca i Estudis Avançats
R. C. Nichol - University of Portsmouth
W. J. Percival - University of Portsmouth
A. A. Plazas - Jet Propulsion Laboratory
M. Sako - University of Pennsylvania
V. Scarpine - Fermi National Accelerator Laboratory
R. Schindler - SLAC National Accelerator Laboratory
D. Scolnic - University of Chicago
E. Sheldon - Brookhaven National Laboratory
M. Smith - University of Southampton
R. C. Smith - Cerro Tololo Inter-American Observatory
M. Soares-Santos - Brandeis University, Martin A. Fisher School of Physics
F. Sobreira - Universidade Estadual de Campinas (UNICAMP)
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
D. L. Tucker - Fermi National Accelerator Laboratory
V. Vikram - Argonne National Laboratory
A. R. Walker - Cerro Tololo Inter-American Observatory
B. Yanny - Fermi National Accelerator Laboratory
Y. Zhang - Fermi National Accelerator Laboratory
Dark Energy Survey Collaboration
Publication Details: Monthly notices of the Royal Astronomical Society, Vol.482(2), pp.2807-2822
Publisher: Oxford Univ Press
Number of pages: 16
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) Ohio State University Ohio State University Center for Cosmology and AstroParticle Physics
Identifiers: 9924552836101921
Academic Unit: Martin A. Fisher School of Physics
Language: English
Resource Type: Journal article

Dark Energy Survey year 1 results: galaxy sample for BAO measurement

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