Pith. sign in

REVIEW 7 cited by

KiDS-1000 and DES-Y1 combined: Cosmology from peak count statistics

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2405.10312 v2 pith:4DKG53KX submitted 2024-05-16 astro-ph.CO

Joachim Harnois-Deraps , Sven Heydenreich , Benjamin Giblin , Nicolas Martinet , Tilman Troester , Marika Asgari , Pierre Burger , Tiago Castro
show 5 more authors
Klaus Dolag Catherine Heymans Hendrik Hildebrandt Benjamin Joachimi Angus H. Wright
This is my paper · ORCID
classification astro-ph.CO
keywords sigmaresultscountkids-1000non-linearparameterpeakstatistics
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

We analyse the fourth data release of the Kilo Degree Survey (KiDS-1000) and extract cosmological parameter constraints based on the cosmic shear peak count statistics. Peaks are identified in aperture mass maps in which the filter is maximally sensitive to angular scales in the range 2-4arcmin, probing deep into the non-linear regime of structure formation. We interpret our results with a simulation-based inference pipeline, sampling over a broad $w$CDM prior volume and marginalising over uncertainties on shape calibration, photometric redshift distribution, intrinsic alignment and baryonic feedback. Our measurements constrain the structure growth parameter and the amplitude of the non-linear intrinsic alignment model to $\Sigma_8 \equiv \sigma_8\left[\Omega_{\rm m}/0.3\right]^{0.60}=0.765^{+0.030}_{-0.030}$ and $A_{\rm IA}= 0.71^{+0.42}_{-0.42}$, respectively, in agreement with previous KiDS-1000 results based on two-point shear statistics. These results are robust against modelling of the non-linear physics, different scale cuts and selections of tomographic bins. The posterior is also consistent with that from the Dark Energy Survey Year-1 peak count analysis presented in Harnois-D\'eraps et al (2021), and hence we jointly analyse both surveys. We obtain $\Sigma_8^{\rm joint} \equiv \sigma_8\left[\Omega_{\rm m}/0.3\right]^{0.57}=0.759^{+0.020}_{-0.017}$, in agreement with the Planck $w$CDM results. The shear-CMB tension on this parameter increases to $3.1\sigma$ when forcing $w=-1.0$, and to $4.1\sigma$ if comparing instead with $S_{8,\Lambda{\rm CDM}}^{\rm joint} = 0.736^{+0.016}_{-0.018}$, one of the tightest constraints to date on this quantity. (abridged)

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 7 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. General Relativistic Entropic Acceleration at the perturbation level: a CLASS implementation and first Boltzmann-code constraints

    gr-qc 2026-07 conditional novelty 6.0 of 10

    First full Boltzmann-code implementation of entropic dark energy, with MCMC constraints from CMB+BAO+SN, yields α≈1 and a fit statistically indistinguishable from ΛCDM.

  2. DECADE+DES Y3 Weak Lensing Mass Map: A 13,000 deg$^2$ View of Cosmic Structure from 270 Million Galaxies

    astro-ph.CO 2025-09 conditional novelty 6.0 of 10

    A 13,000 square degree weak lensing mass map, the largest to date, with a first demonstration of filament detection from lensing alone.

  3. Inflation in non-local hybrid metric-Palatini gravity

    hep-th 2024-12 conditional novelty 6.0 of 10

    Non-local hybrid metric-Palatini gravity generically contains ghosts, but a degenerate subclass with metric f(R) gravity plus Palatini non-local terms is ghost-free and can drive slow-roll inflation resembling Starobi...

  4. The FLAMINGO project: cosmology with the redshift dependence of weak gravitational lensing peaks

    astro-ph.CO 2024-12 conditional novelty 6.0 of 10

    The redshift distribution of high-SNR weak lensing peaks traces massive haloes and is insensitive to baryonic physics, making it a promising cosmological probe for Stage IV surveys.

  5. Sign Switching in Dark Sector Coupling Interactions as a Candidate for Resolving Cosmological Tensions

    astro-ph.CO 2025-01 conditional novelty 5.0 of 10

    A sign-switching dark-sector coupling, fitted to CMB, DESI BAO, and supernova data, can simultaneously raise H0 and lower S8, but the preference over LambdaCDM depends on using SH0ES-calibrated supernovae.

  6. Alleviating cosmological tensions with a hybrid dark sector

    astro-ph.CO 2024-12 conditional novelty 5.0 of 10

    A one-parameter interacting dark sector model can shift H0 upward and S8 downward when fit to Planck, DESI and supernova data, but the Bayesian evidence over LambdaCDM is inconclusive without SH0ES calibration.

  7. Cosmological Parameter Estimation with Sequential Linear Simulation-based Inference

    astro-ph.IM 2025-01 conditional novelty 3.0 of 10

    LSBI approximates simulated likelihoods as linear Gaussians and iteratively refines posteriors, reaching accuracy comparable to neural SBI on CMB power spectrum emulations.

Pith tools