Journal
PHYSICAL REVIEW D
Volume 94, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.94.022002
Keywords
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Funding
- University of Chicago Research Computing Center
- National Science Foundation [ACI-1053575, AST-1138766]
- European Research Council [240672]
- DOE SciDAC grant
- SFB-Transregio 33 The Dark Universe by the Deutsche Forschungsgemeinaft (DFG)
- DFG cluster of excellence Origin and Structure of the Universe
- Swiss National Foundation [20021_14944, 20021_1439606]
- NSF [AST-0812790, AST-1138729]
- DoE [DE-SC0007901]
- FAPESP
- CNPq
- NASA Astrophysics Data System
- 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 e Tecnologia
- Deutsche Forschungsgemeinschaft
- Collaborating Institutions in the Dark Energy Survey
- MINECO [AYA2012-39559, ESP2013-48274, FPA2013-47986]
- Centro de Excelencia Severo Ochoa [SEV-2012-0234]
- ERDF funds from European Union
- [NSF-AST-1211838]
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [1536171, 1211838] Funding Source: National Science Foundation
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [1311924] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1125897] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/I000879/1, ST/M001334/1, 1244451, ST/F001991/1, ST/N000668/1, ST/K00090X/1, 1299206, ST/J001511/1, ST/M004708/1, ST/L000768/1] Funding Source: researchfish
- UK Space Agency [ST/K003135/1, ST/N002679/1] Funding Source: researchfish
- STFC [ST/I000976/1, ST/M003574/1, ST/H001581/1, ST/J001511/1, ST/L000652/1, ST/L000768/1, ST/F001991/1, ST/L006529/1, ST/N001087/1, ST/M001334/1, ST/M005305/1, ST/N000668/1, ST/K00090X/1, ST/M004708/1, ST/I000879/1] Funding Source: UKRI
- ICREA Funding Source: Custom
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We present measurements of weak gravitational lensing cosmic shear two-point statistics using Dark Energy Survey Science Verification data. We demonstrate that our results are robust to the choice of shear measurement pipeline, either NGMIX or IM3SHAPE, and robust to the choice of two-point statistic, including both real and Fourier-space statistics. Our results pass a suite of null tests including tests for B-mode contamination and direct tests for any dependence of the two-point functions on a set of 16 observing conditions and galaxy properties, such as seeing, airmass, galaxy color, galaxy magnitude, etc. We furthermore use a large suite of simulations to compute the covariance matrix of the cosmic shear measurements and assign statistical significance to our null tests. We find that our covariance matrix is consistent with the halo model prediction, indicating that it has the appropriate level of halo sample variance. We compare the same jackknife procedure applied to the data and the simulations in order to search for additional sources of noise not captured by the simulations. We find no statistically significant extra sources of noise in the data. The overall detection significance with tomography for our highest source density catalog is 9.7 sigma. Cosmological constraints from the measurements in this work are presented in a companion paper.
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