Euclid. I. Overview of the Euclid mission

Y Mellier, A Abdurroúf, JAA Barroso… - Astronomy & …, 2024 - aanda.org
The current standard model of cosmology successfully describes a variety of measurements,
but the nature of its main ingredients, dark matter and dark energy, remains unknown. is a …

CosmoGridV1: a simulated 𝗐CDM theory prediction for map-level cosmological inference

T Kacprzak, J Fluri, A Schneider… - Journal of Cosmology …, 2023 - iopscience.iop.org
We present CosmoGridV1: a large set of lightcone simulations for map-level cosmological
inference with probes of large scale structure. It is designed for cosmological parameter …

Euclid. I. Overview of the Euclid mission

E Collaboration, Y Mellier, JA Acevedo Barroso… - ASTRONOMY & …, 2024 - iris.unito.it
The current standard model of cosmology successfully describes a variety of measurements,
but the nature of its main ingredients, dark matter and dark energy, remains unknown. Euclid …

Testing the accuracy of likelihoods for cluster abundance cosmology

C Payerne, C Murray, C Combet, C Doux… - Monthly Notices of …, 2023 - academic.oup.com
The abundance of galaxy clusters is a sensitive probe to the amplitude of matter density
fluctuations, the total amount of matter in the Universe as well as its expansion history …

Super-sample covariance of the power spectrum, bispectrum, halos, voids, and their cross covariances

AE Bayer, J Liu, R Terasawa, A Barreira, Y Zhong… - Physical Review D, 2023 - APS
We study the effect of super-sample covariance (SSC) on the power spectrum and higher-
order statistics; bispectrum, halo mass function, and void size function. We also investigate …

Euclid: Covariance of weak lensing pseudo-Cℓ estimates-Calculation, comparison to simulations, and dependence on survey geometry

RE Upham, ML Brown, L Whittaker, A Amara… - Astronomy & …, 2022 - aanda.org
An accurate covariance matrix is essential for obtaining reliable cosmological results when
using a Gaussian likelihood. In this paper we study the covariance of pseudo-C ℓ estimates …

Efficient computation of the super-sample covariance for stage IV galaxy surveys

F Lacasa, M Aubert, P Baratta, J Carron… - Astronomy & …, 2023 - aanda.org
Super-sample covariance (SSC) is an important effect for cosmological analyses that use
the deep structure of the cosmic web; it may, however, be nontrivial to include it practically in …

Euclid preparation: LII. Forecast impact of super-sample covariance on 3× 2pt analysis with Euclid

Euclid Collaboration - Astronomy & Astrophysics, 2024 - discovery.ucl.ac.uk
Context. Deviations from Gaussianity in the distribution of the fields probed by large-scale
structure surveys generate additional terms in the data covariance matrix, increasing the …

Towards including super-sample covariance in the unbinned likelihood for cluster abundance cosmology

C Payerne, C Murray, C Combet… - Monthly Notices of the …, 2024 - academic.oup.com
The measurement of the abundance of galaxy clusters in the Universe is a sensitive probe of
cosmology, which depends on both the expansion history of the Universe and the growth of …

Super sample covariance and the volume scaling of galaxy survey covariance matrices

G Schreiner, A Krolewski, S Joudaki… - arXiv preprint arXiv …, 2024 - arxiv.org
Super sample covariance (SSC) is important when estimating covariance matrices using a
set of mock catalogues for galaxy surveys. If the underlying cosmological simulations do not …