A non-linear solution to the S8 tension – II. Analysis of DES Year 3 cosmic shear
C Preston, A Amon, G Efstathiou�- Monthly Notices of the Royal�…, 2023 - academic.oup.com
Weak galaxy lensing surveys have consistently reported low values of the S 8 parameter
compared to the Planck lambda cold dark matter (ΛCDM) cosmology. Amon & Efstathiou�…
compared to the Planck lambda cold dark matter (ΛCDM) cosmology. Amon & Efstathiou�…
Sigma-8 tension is a drag
Measurements of weak gravitational lensing at low redshifts (z≲ 0.5–1), quantified by the
parameter S 8, favor weaker matter clustering than that expected from the standard Λ cold�…
parameter S 8, favor weaker matter clustering than that expected from the standard Λ cold�…
A non-linear solution to the S8 tension?
A Amon, G Efstathiou�- Monthly Notices of the Royal�…, 2022 - academic.oup.com
Weak galaxy lensing surveys have consistently reported a lower amplitude for the matter
fluctuation spectrum, as measured by the S 8 parameter, than expected in the ΛCDM�…
fluctuation spectrum, as measured by the S 8 parameter, than expected in the ΛCDM�…
Cosmic shear cosmology beyond two-point statistics: a combined peak count and correlation function analysis of DES-Y1
J Harnois-D�raps, N Martinet, T Castro…�- Monthly Notices of�…, 2021 - academic.oup.com
We constrain cosmological parameters from a joint cosmic shear analysis of peak-counts
and the two-point shear correlation functions, as measured from the Dark Energy Survey�…
and the two-point shear correlation functions, as measured from the Dark Energy Survey�…
Dark Energy Survey Year 3 results: Cosmology from cosmic shear and robustness to modeling uncertainty
This work and its companion paper, Amon et al.[Phys. Rev. D 105, 023514 (2022) PRVDAQ
2470-0010 10.1103/PhysRevD. 105.023514], present cosmic shear measurements and�…
2470-0010 10.1103/PhysRevD. 105.023514], present cosmic shear measurements and�…
DES Y3 cosmic shear down to small scales: constraints on cosmology and baryons
We present the first analysis of cosmic shear measured in DES Y3 that employs the entire
range of angular scales in the data. To achieve this, we built upon recent advances in the�…
range of angular scales in the data. To achieve this, we built upon recent advances in the�…
3D cosmic shear: cosmology from CFHTLenS
This paper presents the first application of 3D cosmic shear to a wide-field weak lensing
survey. 3D cosmic shear is a technique that analyses weak lensing in three dimensions�…
survey. 3D cosmic shear is a technique that analyses weak lensing in three dimensions�…
Weak lensing from space: first cosmological constraints from three-point shear statistics
E Semboloni, T Schrabback…�- Monthly Notices of�…, 2011 - academic.oup.com
We use weak lensing data from the Hubble Space Telescope COSMOS survey to measure
the second-and third-order moments of the cosmic shear field, estimated from about 450 000�…
the second-and third-order moments of the cosmic shear field, estimated from about 450 000�…
Cosmological constraints from the CFHTLenS shear measurements using a new, accurate, and flexible way of predicting non-linear mass clustering
We explore the cosmological constraints from cosmic shear using a new way of modelling
the non-linear matter correlation functions. The new formalism extends the method of Angulo�…
the non-linear matter correlation functions. The new formalism extends the method of Angulo�…
Discrepancies between CFHTLenS cosmic shear and Planck: new physics or systematic effects?
There is currently a discrepancy in the measured value of the amplitude of matter clustering,
parametrized using σ8, inferred from galaxy weak lensing, and cosmic microwave�…
parametrized using σ8, inferred from galaxy weak lensing, and cosmic microwave�…