The FLAMINGO project: cosmological hydrodynamical simulations for large-scale structure and galaxy cluster surveys

J Schaye, R Kugel, M Schaller, JC Helly… - Monthly Notices of …, 2023 - academic.oup.com
ABSTRACT We introduce the Virgo Consortium's FLAMINGO suite of hydrodynamical
simulations for cosmology and galaxy cluster physics. To ensure the simulations are …

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 …

Introducing the TNG-Cluster simulation: Overview and the physical properties of the gaseous intracluster medium

D Nelson, A Pillepich, M Ayromlou, W Lee… - Astronomy & …, 2024 - aanda.org
We introduce the new TNG-Cluster project, an addition to the IllustrisTNG suite of
cosmological magnetohydrodynamical simulations of galaxy formation. Our objective is to …

DES Y3 cosmic shear down to small scales: constraints on cosmology and baryons

G Aricò, RE Angulo, M Zennaro, S Contreras… - Astronomy & …, 2023 - aanda.org
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 …

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 …

FLAMINGO: calibrating large cosmological hydrodynamical simulations with machine learning

R Kugel, J Schaye, M Schaller, JC Helly… - Monthly Notices of …, 2023 - academic.oup.com
To fully take advantage of the data provided by large-scale structure surveys, we need to
quantify the potential impact of baryonic effects, such as feedback from active galactic nuclei …

SP (k)–a hydrodynamical simulation-based model for the impact of baryon physics on the non-linear matter power spectrum

J Salcido, IG McCarthy, J Kwan… - Monthly Notices of the …, 2023 - academic.oup.com
Upcoming large-scale structure surveys will measure the matter power spectrum to
approximately per cent level accuracy with the aim of searching for evidence for new physics …

Constraining the baryonic feedback with cosmic shear using the DES Year-3 small-scale measurements

A Chen, G Aricò, D Huterer, RE Angulo… - Monthly Notices of …, 2023 - academic.oup.com
We use the small scales of the Dark Energy Survey (DES) Year-3 cosmic shear
measurements, which are excluded from the DES Year-3 cosmological analysis, to constrain …

Full analysis of KiDS-1000 weak lensing maps using deep learning

J Fluri, T Kacprzak, A Lucchi, A Schneider, A Refregier… - Physical Review D, 2022 - APS
We present a full forward-modeled w CDM analysis of the KiDS-1000 weak lensing maps
using graph-convolutional neural networks (GCNN). Utilizing the cosmogrid, a novel …

Inferring the impact of feedback on the matter distribution using the Sunyaev Zel'dovich effect: insights from CAMELS simulations and ACT+ DES data

S Pandey, K Lehman, EJ Baxter, Y Ni… - Monthly Notices of …, 2023 - academic.oup.com
Feedback from active galactic nuclei and stellar processes changes the matter distribution
on small scales, leading to significant systematic uncertainty in weak lensing constraints on …