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Title: Cosmic shear results from the deep lens survey. II. Full cosmological parameter constraints from tomography

Journal Article · · The Astrophysical Journal (Online)
 [1];  [2];  [3]; ORCiD logo [4];  [2]; ORCiD logo [2]
  1. Yonsei Univ., Seoul (Korea); Univ. of California, Davis, CA (United States)
  2. Univ. of California, Davis, CA (United States)
  3. Excellence Cluster Universe, Garching (Germany); Univ.-Sternwarte, Munchen (Germany)
  4. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Here, we present a tomographic cosmic shear study from the Deep Lens Survey (DLS), which, providing a limiting magnitude $${r}_{\mathrm{lim}}\sim 27$$ ($$5\sigma $$), is designed as a precursor Large Synoptic Survey Telescope (LSST) survey with an emphasis on depth. Using five tomographic redshift bins, we study their auto- and cross-correlations to constrain cosmological parameters. We use a luminosity-dependent nonlinear model to account for the astrophysical systematics originating from intrinsic alignments of galaxy shapes. We find that the cosmological leverage of the DLS is among the highest among existing $$\gt 10$$ deg2 cosmic shear surveys. Combining the DLS tomography with the 9 yr results of the Wilkinson Microwave Anisotropy Probe (WMAP9) gives $${{\rm{\Omega }}}_{m}={0.293}_{-0.014}^{+0.012}$$, $${\sigma }_{8}={0.833}_{-0.018}^{+0.011}$$, $${H}_{0}={68.6}_{-1.2}^{+1.4}\;{\text{km s}}^{-1}\;{{\rm{Mpc}}}^{-1}$$, and $${{\rm{\Omega }}}_{b}=0.0475\pm 0.0012$$ for ΛCDM, reducing the uncertainties of the WMAP9-only constraints by ~50%. When we do not assume flatness for ΛCDM, we obtain the curvature constraint $${{\rm{\Omega }}}_{k}=-{0.010}_{-0.015}^{+0.013}$$ from the DLS+WMAP9 combination, which, however, is not well constrained when WMAP9 is used alone. The dark energy equation-of-state parameter w is tightly constrained when baryonic acoustic oscillation (BAO) data are added, yielding $$w=-{1.02}_{-0.09}^{+0.10}$$ with the DLS+WMAP9+BAO joint probe. The addition of supernova constraints further tightens the parameter to $$w=-1.03\pm 0.03$$. Our joint constraints are fully consistent with the final Planck results and also with the predictions of a ΛCDM universe.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1338898
Report Number(s):
LLNL-JRNL-672576
Journal Information:
The Astrophysical Journal (Online), Vol. 824, Issue 2; ISSN 1538-4357
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 67 works
Citation information provided by
Web of Science

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Euclid preparation : IV. Impact of undetected galaxies on weak-lensing shear measurements⋆ journal July 2019
Dark energy two decades after: observables, probes, consistency tests journal December 2017
Cosmology with the Large Synoptic Survey Telescope: an overview journal April 2018
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SKA weak lensing– II. Simulated performance and survey design considerations journal August 2016
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KiDS-450 + 2dFLenS: Cosmological parameter constraints from weak gravitational lensing tomography and overlapping redshift-space galaxy clustering journal October 2017
KiDS-450: cosmological constraints from weak lensing peak statistics – I. Inference from analytical prediction of high signal-to-noise ratio convergence peaks journal November 2017
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Weak lensing shear calibration with simulations of the HSC survey journal September 2018
Deep lensing with a twist: E and B modes in a field with multiple lenses journal October 2018
A unified analysis of four cosmic shear surveys journal October 2018
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Calibration of colour gradient bias in shear measurement using HST/CANDELS data journal March 2018
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Luminous red galaxies in the Kilo-Degree Survey: selection with broad-band photometry and weak lensing measurements journal May 2019
Dark Energy Survey Year 1 results: constraints on intrinsic alignments and their colour dependence from galaxy clustering and weak lensing journal August 2019
Cosmology from cosmic shear power spectra with Subaru Hyper Suprime-Cam first-year data journal March 2019
Observational constraints on growth index with cosmography journal August 2019
Practical Weak-lensing Shear Measurement with Metacalibration journal May 2017
Full-sky Ray-tracing Simulation of Weak Lensing Using ELUCID Simulations: Exploring Galaxy Intrinsic Alignment and Cosmic Shear Correlations journal January 2018
Projection Effects of Large-scale Structures on Weak-lensing Peak Abundances journal April 2018
Constraints on Cosmology and Baryonic Feedback with the Deep Lens Survey Using Galaxy–Galaxy and Galaxy–Mass Power Spectra journal January 2019
The Importance of Secondary Halos for Strong Lensing in Massive Galaxy Clusters across Redshift journal June 2019
KiDS+VIKING-450: A new combined optical and near-infrared dataset for cosmology and astrophysics text January 2019
KiDS-450: Cosmological parameter constraints from tomographic weak gravitational lensing text January 2016
Radio-Optical Galaxy Shape Correlations in the COSMOS Field text January 2016
KiDS-450: Testing extensions to the standard cosmological model text January 2016
Practical Weak Lensing Shear Measurement with Metacalibration text January 2017
KiDS+GAMA: Cosmology constraints from a joint analysis of cosmic shear, galaxy-galaxy lensing and angular clustering text January 2017
Statistical Inconsistencies in the KiDS-450 Dataset text January 2017
Dark Energy Survey Year 1 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing text January 2017
Dark Energy Survey Year 1 Results: The Impact of Galaxy Neighbours on Weak Lensing Cosmology with im3shape text January 2017
Dark Energy Survey Year 1 Results: Cosmological Constraints from Cosmic Shear text January 2017
Dark energy two decades after: Observables, probes, consistency tests text January 2017
Emulating galaxy clustering and galaxy-galaxy lensing into the deeply nonlinear regime: methodology, information, and forecasts text January 2017
Projection effects of large-scale structures on weak-lensing peak abundances text January 2018
Constraints on Cosmology and Baryonic Feedback with the Deep Lens Survey Using Galaxy-Galaxy and Galaxy-Mass Power Spectra text January 2018
A Unified Analysis of Four Cosmic Shear Surveys text January 2018
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KiDS+GAMA: Intrinsic alignment model constraints for current and future weak lensing cosmology text January 2018
Towards emulating cosmic shear data: Revisiting the calibration of the shear measurements for the Kilo-Degree Survey text January 2018
Euclid Preparation IV. Impact of undetected galaxies on weak-lensing shear measurements text January 2019
A new estimator for gravitational lensing using galaxy and intensity mapping surveys text January 2019