articleAstronomy and AstrophysicsOct 20, 2020BRONZE OA

KiDS-1000 cosmology: Cosmic shear constraints and comparison between two point statistics

MAMarika AsgariCLChieh-An LinBJBenjamin JoachimiBGBenjamin GiblinCHCatherine Heymans

Royal Observatory · University of Edinburgh · +14 more institutions

Indexed inarxivcrossrefdoaj

Abstract

We present cosmological constraints from a cosmic shear analysis of the fourth data release of the Kilo-Degree Survey (KiDS-1000), which doubles the survey area with nine-band optical and near-infrared photometry with respect to previous KiDS analyses. Adopting a spatially flat standard cosmological model, we find S 8 = σ 8 (Ω m /0.3) 0.5 = 0.759 −0.021 +0.024 for our fiducial analysis, which is in 3 σ tension with the prediction of the Planck Legacy analysis of the cosmic microwave background. We compare our fiducial COSEBIs (Complete Orthogonal Sets of E/B-Integrals) analysis with complementary analyses of the two-point shear correlation function and band power spectra, finding the results to be in excellent…

Citation impact

676
total citations
FWCI
47.90
Percentile
100%
References
161
Citations per year

Authors

25

Topics & keywords

Topics
Keywords
  • Physics
  • Astrophysics
  • Cosmic microwave background
  • COSMIC cancer database
  • Planck
  • Cosmology
  • Omega
  • Spectral density
UN Sustainable Development Goals
  • Reduced inequalities
No related works found for this paper.

Funding