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The FLAMINGO project: Baryonic impact on weak gravitational lensing convergence peak counts
Jeger C. Broxterman, Matthieu Schaller, Joop Schaye +12
Weak gravitational lensing convergence peaks, the local maxima in weak lensing convergence maps, have been shown to contain valuable cosmological information complementary to commo…
The FLAMINGO Project: Galaxy clusters in comparison to X-ray observations
Joey Braspenning, Joop Schaye, Matthieu Schaller +10
Galaxy clusters are important probes for both cosmology and galaxy formation physics. We test the cosmological, hydrodynamical FLAMINGO simulations by comparing to observations of…
Inferring the dark matter splashback radius from cluster gas and observable profiles in the FLAMINGO simulations
Imogen Towler, Scott T. Kay, Joop Schaye +10
The splashback radius, coinciding with the minimum in the dark matter radial density gradient, is thought to be a universal definition of the edge of a dark matter halo. Observatio…
Revisiting the Extreme Clustering of Quasars with Large Volume Cosmological Simulations
Elia Pizzati, Joseph F. Hennawi, Joop Schaye +1
Observations from wide-field quasar surveys indicate that the quasar auto-correlation length increases dramatically from to . This large clustering amplitu…
Realistic simulated galaxies form [/Fe]-[Fe/H] knees due to a sustained decline in their star formation rates
Andrew C. Mason, Robert A. Crain, Ricardo P. Schiavon +5
We examine the stellar [/Fe]-[Fe/H] distribution of present-day galaxies in a high-resolution EAGLE simulation. A slight majority of galaxies exhibit the canonical…
The FLAMINGO project: revisiting the tension and the role of baryonic physics
Ian G. McCarthy, Jaime Salcido, Joop Schaye +12
A number of recent studies have found evidence for a tension between observations of large-scale structure (LSS) and the predictions of the standard model of cosmology with the cos…
Resolution criteria to avoid artificial clumping in Lagrangian hydrodynamic simulations with a multi-phase interstellar medium
Sylvia Ploeckinger, Folkert S. J. Nobels, Matthieu Schaller +1
Large-scale cosmological galaxy formation simulations typically prevent gas in the interstellar medium (ISM) from cooling below K. This has been motivated by the ina…
On the anisotropic distribution of clusters in the local Universe
Matthieu Schaller
In his 2021 lecture to the Canadian Association of Physicists Congress, P.J.E. Peebles pointed out that the brightest extra-galactic radio sources tend to be aligned with the plane…
Tests of subgrid models for star formation using simulations of isolated disk galaxies
Folkert S. J. Nobels, Joop Schaye, Matthieu Schaller +3
We use smoothed-particle hydrodynamics simulations of isolated Milky Way-mass disk galaxies that include cold, interstellar gas to test subgrid prescriptions for star formation (SF…
Non-linear CMB lensing with neutrinos and baryons: FLAMINGO simulations vs. fast approximations
Amol Upadhye, Juliana Kwan, Ian G. McCarthy +11
Weak lensing of the cosmic microwave background is rapidly emerging as a powerful probe of neutrinos, dark energy, and new physics. We present a fast computation of the non-linear…
Winds versus jets: a comparison between black hole feedback modes in simulations of idealized galaxy groups and clusters
Filip Huško, Cedric G. Lacey, Joop Schaye +2
Using the SWIFT simulation code we study different forms of active galactic nuclei (AGN) feedback in idealized galaxy groups and clusters. We first present a physically motivated m…
Hydrodynamic simulations of the Disk of Gas Around Supermassive black holes (HDGAS) -I; Molecular Gas Dynamics
Mojtaba Raouf, Serena Viti, S. García-Burillo +9
We present hydrodynamic simulations of the interstellar medium (ISM) within the circumnuclear disk (CND) of a typical AGN-dominated galaxy influenced by mechanical feedback from an…
FLAMINGO: Calibrating large cosmological hydrodynamical simulations with machine learning
Roi Kugel, Joop Schaye, Matthieu Schaller +17
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 n…
The FLAMINGO project: cosmological hydrodynamical simulations for large-scale structure and galaxy cluster surveys
Joop Schaye, Roi Kugel, Matthieu Schaller +17
We introduce the Virgo Consortium's FLAMINGO suite of hydrodynamical simulations for cosmology and galaxy cluster physics. To ensure the simulations are sufficiently realistic for…
KURVS: The outer rotation curve shapes and dark matter fractions of star-forming galaxies
Annagrazia Puglisi, Ugnė Dudzevičiūtė, Mark Swinbank +14
We present first results from the KMOS Ultra-deep Rotation Velocity Survey (KURVS), aimed at studying the outer rotation curves shape and dark matter content of 22 star-forming gal…
SWIFT: A modern highly-parallel gravity and smoothed particle hydrodynamics solver for astrophysical and cosmological applications
Matthieu Schaller, Josh Borrow, Peter W. Draper +24
Numerical simulations have become one of the key tools used by theorists in all the fields of astrophysics and cosmology. The development of modern tools that target the largest ex…