The DES Science Verification Weak Lensing Shear Catalogs
Abstract
Here, we present weak lensing shear catalogues for 139 square degrees of data taken during the Science Verification (SV) time for the new Dark Energy Camera (DECam) being used for the Dark Energy Survey (DES). We also describe our object selection, point spread function estimation and shear measurement procedures using two independent shear pipelines, IM3SHAPE and NGMIX, which produce catalogues of 2.12 million and 3.44 million galaxies, respectively. Furthermore, we detail a set of null tests for the shear measurements and find that they pass the requirements for systematic errors at the level necessary for weak lensing science applications using the SV data. Finally, we discuss some of the planned algorithmic improvements that will be necessary to produce sufficiently accurate shear catalogues for the full 5-yr DES, which is expected to cover 5000 square degrees.
- Authors:
-
- Univ. of Pennsylvania, Philadelphia, PA (United States). et al.
- Publication Date:
- Research Org.:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Org.:
- DES Collaboration
- OSTI Identifier:
- 1223235
- Alternate Identifier(s):
- OSTI ID: 1336165
- Report Number(s):
- FERMILAB-PUB-15-309-AE; BNL-112730-2016-JA
Journal ID: ISSN 1365-2966; arXiv eprint number arXiv:1507.05603; TRN: US1601624
- Grant/Contract Number:
- AC02-07CH11359; SC00112704; AC02-98CH10886; SC0007901; SC0007859
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Monthly Notices of the Royal Astronomical Society (Online)
- Additional Journal Information:
- Journal Name: Monthly Notices of the Royal Astronomical Society (Online); Journal Volume: 460; Journal Issue: 2; Journal ID: ISSN 1365-2966
- Publisher:
- Royal Astronomical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; gravitational lensing: weak; methods: data analysis; techniques: image processing; catalogues; surveys; cosmology: observations
Citation Formats
Jarvis, M. The DES Science Verification Weak Lensing Shear Catalogs. United States: N. p., 2016.
Web. doi:10.1093/mnras/stw990.
Jarvis, M. The DES Science Verification Weak Lensing Shear Catalogs. United States. https://doi.org/10.1093/mnras/stw990
Jarvis, M. Sun .
"The DES Science Verification Weak Lensing Shear Catalogs". United States. https://doi.org/10.1093/mnras/stw990. https://www.osti.gov/servlets/purl/1223235.
@article{osti_1223235,
title = {The DES Science Verification Weak Lensing Shear Catalogs},
author = {Jarvis, M.},
abstractNote = {Here, we present weak lensing shear catalogues for 139 square degrees of data taken during the Science Verification (SV) time for the new Dark Energy Camera (DECam) being used for the Dark Energy Survey (DES). We also describe our object selection, point spread function estimation and shear measurement procedures using two independent shear pipelines, IM3SHAPE and NGMIX, which produce catalogues of 2.12 million and 3.44 million galaxies, respectively. Furthermore, we detail a set of null tests for the shear measurements and find that they pass the requirements for systematic errors at the level necessary for weak lensing science applications using the SV data. Finally, we discuss some of the planned algorithmic improvements that will be necessary to produce sufficiently accurate shear catalogues for the full 5-yr DES, which is expected to cover 5000 square degrees.},
doi = {10.1093/mnras/stw990},
journal = {Monthly Notices of the Royal Astronomical Society (Online)},
number = 2,
volume = 460,
place = {United States},
year = {Sun May 01 00:00:00 EDT 2016},
month = {Sun May 01 00:00:00 EDT 2016}
}
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Dark Energy Survey Year 1 results: constraints on intrinsic alignments and their colour dependence from galaxy clustering and weak lensing
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A new sample of southern radio galaxies: host-galaxy masses and star-formation rates
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Galaxy shape measurement with convolutional neural networks
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The Wendelstein Weak Lensing (WWL) pathfinder: accurate weak lensing masses for Planck clusters
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Beyond linear galaxy alignments
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Integrated cosmological probes: Extended analysis
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Looking through the same lens: Shear calibration for LSST, Euclid, and WFIRST with stage 4 CMB lensing
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Dark Energy Survey year 1 results: Galaxy-galaxy lensing
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Dark Energy Survey Year 1 results: Cosmological constraints from cosmic shear
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Exploring the Brighter-fatter Effect with the Hyper Suprime-Cam
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Practical Weak-lensing Shear Measurement with Metacalibration
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Removing the Impact of Correlated PSF Uncertainties in Weak Lensing
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Galaxy–Galaxy Weak-lensing Measurements from SDSS. II. Host Halo Properties of Galaxy Groups
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Stellar Streams Discovered in the Dark Energy Survey
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Dark Energy Survey Year 1 Results: Detection of Intracluster Light at Redshift ∼ 0.25
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Hierarchical Modeling and Statistical Calibration for Photometric Redshifts
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Dark Energy Survey Year 1 Results: The Photometric Data Set for Cosmology
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Dark Energy Survey Year 1 Results: Photometric Data Set for Cosmology
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Cosmology constraints from shear peak statistics in Dark Energy Survey Science Verification data
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The effect of detector nonlinearity on WFIRST PSF profiles for weak gravitational lensing measurements
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KiDS-450: Cosmological parameter constraints from tomographic weak gravitational lensing
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Radio-Optical Galaxy Shape Correlations in the COSMOS Field
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Practical Weak Lensing Shear Measurement with Metacalibration
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The Hyper Suprime-Cam Software Pipeline
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KiDS-i-800: Comparing weak gravitational lensing measurements in same-sky surveys
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Cross-Correlation Redshift Calibration Without Spectroscopic Calibration Samples in DES Science Verification Data
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Dark Energy Survey Year 1 Results: Photometric Data Set for Cosmology
text, January 2017
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- arXiv
Dark Energy Survey Year 1 Results: Redshift distributions of the weak lensing source galaxies
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- arXiv
Dark Energy Survey Year 1 Results: The Impact of Galaxy Neighbours on Weak Lensing Cosmology with im3shape
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Dark Energy Survey Year 1 Results: Galaxy-Galaxy Lensing
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- arXiv
Dark Energy Survey Year 1 Results: Cosmological Constraints from Cosmic Shear
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Radio Weak Lensing Shear Measurement in the Visibility Domain - II. Source Extraction
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Galaxies in X-ray Selected Clusters and Groups in Dark Energy Survey Data II: Hierarchical Bayesian Modeling of the Red-Sequence Galaxy Luminosity Function
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- arXiv
Exploring the brighter fatter effect with the Hyper Suprime-Cam
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- Coulton, William R.; Armstrong, Robert; Smith, Kendrick M.
- arXiv
Galaxy-galaxy weak-lensing measurement from SDSS: II. host halo properties of galaxy groups
text, January 2017
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- arXiv
Removing the Impact of Correlated PSF Uncertainties in Weak Lensing
text, January 2017
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- arXiv
Dark Energy Survey Year 1 Results: Weak Lensing Mass Calibration of redMaPPer Galaxy Clusters
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- arXiv
Radio Galaxy Shape Measurement with Hamiltonian Monte Carlo in the Visibility Domain
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Hierarchical modeling and statistical calibration for photometric redshifts
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- arXiv
Gravitational lensing detection of an extremely dense environment around a galaxy cluster
preprint, January 2018
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- arXiv
A Unified Analysis of Four Cosmic Shear Surveys
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Cosmology from cosmic shear power spectra with Subaru Hyper Suprime-Cam first-year data
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- arXiv
Dark Energy Survey Year 1 Results: Constraints on Intrinsic Alignments and their Colour Dependence from Galaxy Clustering and Weak Lensing
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- Samuroff, S.; Blazek, J.; Troxel, M. A.
- arXiv
Dark Energy Survey Year 1 results: Detection of Intra-cluster Light at Redshift $\sim$ 0.25
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Galaxy shape measurement with convolutional neural networks
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- arXiv
The galaxy cluster mass scale and its impact on cosmological constraints from the cluster population
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- arXiv
A new sample of southern radio galaxies: Host galaxy masses and star-formation rates
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- arXiv
Cosmological model discrimination with Deep Learning
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Gravitational lensing detection of an extremely dense environment around a galaxy cluster
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