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dc.contributor.authorDES Collaboration
dc.date.accessioned2022-03-31T21:10:22Z
dc.date.available2022-03-31T21:10:22Z
dc.date.issued2022
dc.identifier.citationRodríguez-Monroy, M., Weaverdyck, N., Elvin-Poole, J., Crocce, M., Carnero Rosell, A., Andrade-Oliveira, F., Avila, S., Bechtol, K., Bernstein, G. M., Blazek, J., Camacho, H., Cawthon, R., De Vicente, J., Derose, J., Dodelson, S., Everett, S., Fang, X., Ferrero, I., Ferté, A., … Varga, T. N. (2022). Dark Energy Survey Year 3 results: Galaxy clustering and systematics treatment for lens galaxy samples. Monthly Notices of the Royal Astronomical Society.
dc.identifier.issn0035-8711
dc.identifier.doi10.1093/mnras/stac104
dc.identifier.urihttp://hdl.handle.net/10150/663812
dc.description.abstractIn this work, we present the galaxy clustering measurements of the two DES lens galaxy samples: a magnitude-limited sample optimized for the measurement of cosmological parameters, maglim, and a sample of luminous red galaxies selected with the redmagic algorithm. maglim/redmagic sample contains over 10 million/2.5 million galaxies and is divided into six/five photometric redshift bins spanning the range z [0.20, 1.05]/z [0.15, 0.90]. Both samples cover 4143 °2 over which we perform our analysis blind, measuring the angular correlation function with an S/N ∼63 for both samples. In a companion paper, these measurements of galaxy clustering are combined with the correlation functions of cosmic shear and galaxy-galaxy lensing of each sample to place cosmological constraints with a 3 × 2pt analysis. We conduct a thorough study of the mitigation of systematic effects caused by the spatially varying survey properties and we correct the measurements to remove artificial clustering signals. We employ several decontamination methods with different configurations to ensure the robustness of our corrections and to determine the systematic uncertainty that needs to be considered for the final cosmology analyses. We validate our fiducial methodology using lognormal mocks, showing that our decontamination procedure induces biases no greater than 0.5σ in the (ωm, b) plane, where b is the galaxy bias. © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
dc.language.isoen
dc.publisherOxford University Press
dc.rightsCopyright © 2022 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectCosmological parameters
dc.subjectCosmology: observations
dc.subjectDark energy
dc.subjectLarge-scale structure of the Universe
dc.titleDark Energy Survey Year 3 results: Galaxy clustering and systematics treatment for lens galaxy samples
dc.typeArticle
dc.typetext
dc.contributor.departmentDepartment of Astronomy/Steward Observatory, University of Arizona
dc.contributor.departmentDepartment of Physics, University of Arizona
dc.identifier.journalMonthly Notices of the Royal Astronomical Society
dc.description.noteImmediate access
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal published version
dc.source.journaltitleMonthly Notices of the Royal Astronomical Society
refterms.dateFOA2022-03-31T21:10:22Z


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