Dark Energy Survey year 1 results: Joint analysis of galaxy clustering, galaxy lensing, and CMB lensing two-point functions

• Published in: Physical Review D
• Main Authors: Marrone, D. P., Rozo, E.
• Other Authors: Univ Arizona, Steward Observ, Univ Arizona, Dept Phys
• Format: Article in Journal/Newspaper
• Language: English
• Published: PHYSICAL REVIEW D 2019
• Subjects: Canada; Kavli; Lambda; South Pole; South pole
• Online Access: http://hdl.handle.net/10150/634086; https://doi.org/10.1103/physrevd.100.023541

We perform a joint analysis of the auto and cross-correlations between three cosmic fields: the galaxy density field, the galaxy weak lensing shear field, and the cosmic microwave background (CMB) weak lensing convergence field. These three fields are measured using roughly 1300 sq. deg. of overlapping optical imaging data from first year observations of the Dark Energy Survey (DES) and millimeter-wave observations of the CMB from both the South Pole Telescope Sunyaev-Zel'dovich survey and Planck. We present cosmological constraints from the joint analysis of the two-point correlation functions between galaxy density and galaxy shear with CMB lensing. We test for consistency between these measurements and the DES-only two-point function measurements, finding no evidence for inconsistency in the context of flat Lambda CDM cosmological models. Performing a joint analysis of five of the possible correlation functions between these fields (excluding only the CMB lensing autospectrum) yields S-8 sigma(8) root Omega(m)/0.3 = 0.782(-0.025)(+0.019) and Omega(m) = 0.260(-0.019)(+0.029). We test for consistency between these five correlation function measurements and the Planck-only measurement of the CMB lensing autospectrum, again finding no evidence for inconsistency in the context of flat Lambda CDM models. Combining constraints from all six two-point functions yields S-8 = 0.776(-0.021)(+0.014) and Omega(m) = 0.271(-0.016)(+0.022). These results provide a powerful test and confirmation of the results from the first year DES joint-probes analysis. U.S. Department of Energy; U.S. National Science Foundation; Ministry of Science and Education of Spain; Science and Technology Facilities Council of the United Kingdom; Higher Education Funding Council for England; National Center for Supercomputing Applications at the University of Illinois at Urbana Champaign; Kavli Institute of Cosmological Physics at the University of Chicago; Center for Cosmology and Astro-Particle Physics at the Ohio State University; Mitchell Institute for Fundamental Physics and Astronomy at Texas AM University; Financiadora de Estudos e Projetos; Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico; Ministerio da Ciencia, Tecnologia e Inovacao; Deutsche Forschungsgemeinschaft; Argonne National Laboratory; University of California at Santa Cruz; University of Cambridge; Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas-Madrid; University College London; DES-Brazil Consortium; University of Edinburgh; Eidgenossische Technische Hochschule (ETH) Zurich; Fermi National Accelerator Laboratory; University of Illinois at Urbana-Champaign; Institut de Ciencies de l'Espai (IEEC/CSIC); Institut de Fisica d'Altes Energies; Lawrence Berkeley National Laboratory; University of Michigan; National Optical Astronomy Observatory; University of Nottingham; Ohio State University; University of Pennsylvania; University of Portsmouth; SLAC National Accelerator Laboratory, Stanford University; University of Sussex; Texas AM University; OzDES Membership Consortium; National Science Foundation [AST-1138766, AST-1536171, PLR-1248097]; MINECO [AYA2015-71825, ESP2015-66861, FPA2015-68048, SEV2016-0588, SEV-2016-0597, MDM-20150509]; ERDF funds from European Union; CERCA program of the Generalitat de Catalunya; European Research Council under the European Union's Seventh Framework Program (FP7/2007-2013) [240672, 291329, 306478]; Australian Research Council Centre of Excellence for All-sky Astrophysics [CE110001020]; Brazilian Instituto Nacional de Ciencia e Tecnologia e-Universe (CNPq Grant) [465376/2014-2]; U.S. Department of Energy, Office of Science, Office of High Energy Physics [DE-AC02-07CH11359]; NSF Physics Frontier Center [PHY-0114422]; Kavli Foundation; Gordon and Betty Moore Foundation [GBMF 947]; Natural Sciences and Engineering Research Council of Canada; Canadian Institute for Advanced Research; Canada Research Chairs program; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]; Ludwig-Maximilians Universitat Munchen; associated Excellence Cluster Universe; University of Chicago This 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 [e-mail].