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Unveiling the population of massive quenched galaxies at in the COLIBRE simulations - I. Galaxy demographics
Ángel Chandro-Gómez, Claudia del P. Lagos, Chris Power +14
The James Webb Space Telescope has uncovered a substantial population of Massive (), Quenched Galaxies (MQGs) in the early Universe ($z \ge…
Kennicutt-Schmidt relation of galaxies over 13 billion years in the COLIBRE hydrodynamical simulations
Claudia del P. Lagos, Joop Schaye, Matthieu Schaller +16
We investigate the correlation between star formation rate (SFR) surface density and gas surface density (known as the Kennicutt-Schmidt, KS, relation) at kiloparsec (kpc) scales a…
Dynamical disequilibrium in dwarf galaxies: rethinking gas dynamics, rotation curves, and dark matter inference
Diego Dado, Kyle A. Oman, Katherine E. Harborne +9
We quantify departures from hydrodynamical and centrifugal equilibrium in the gas discs of low-mass () galaxies from the COLIBR…
Self-consistent secondary cosmic microwave background anisotropies and extragalactic foregrounds in the FLAMINGO simulations
Tianyi Yang, Ian G. McCarthy, Fiona McCarthy +6
Secondary anisotropies in the cosmic microwave background (CMB) contain information that can be used to test both cosmological models and models of galaxy formation. Starting from…
Ripples in the baryon to dark matter ratio in CDM: implications for galaxy formation
Owen Jessop, Adrian Jenkins, Andrew Pontzen +3
We use the FLAMINGO galaxy formation model to quantify the impact of baryon-CDM isocurvature perturbations on galaxy formation in CDM. In linear theory, these perturbations repr…
Inferring the Impacts of Baryonic Feedback from Kinetic Sunyaev-Zeldovich Cross-Correlations
Alex Laguë, Mathew S. Madhavacheril, Josh Borrow +4
The complex processes of baryonic feedback associated with galaxy evolution are still poorly understood, and their impact on the clustering of matter on small scales remains diffic…
Gravitational potential drives the concentration dependence of the stellar mass-halo mass relation
Kai Wang, Joop Schaye, Alejandro Benítez-Llambay +8
We investigate the origin of the scatter in the stellar mass-halo mass (SMHM) relation using the \colibre cosmological hydrodynamical simulations. At fixed halo mass, we find a cle…
The kinetic Sunyaev Zeldovich effect as a benchmark for AGN feedback models in hydrodynamical simulations: insights from DESI + ACT
Leah Bigwood, Masaya Yamamoto, Jared Siegel +7
Baryonic feedback remains one of the largest uncertainties in cosmological hydrodynamical simulations, with different prescriptions producing divergent predictions for the fraction…
FLAMINGO: Baryonic effects on the weak lensing scattering transform
Mariia Marinichenko, Marcel P. van Daalen, Elena Sellentin +3
The scattering transform is a wavelet-based statistic capable of capturing non-Gaussian features in weak lensing (WL) convergence maps and has been proven to tighten cosmological p…
The luminosity function and clustering of bright quasars in the FLAMINGO cosmological simulations
Boyi Ding, Elia Pizzati, Joop Schaye +3
Cosmological hydrodynamical simulations are essential tools for studying the formation and evolution of galaxies and their central supermassive black holes. While they reproduce ma…
Luminosity-Dependent Assembly Bias of Central Galaxies from Weak Lensing and Clustering
Zhenjie Liu, Hironao Miyatake, Joop Schaye +3
Assembly bias, which is the variation in halo clustering at fixed mass driven by formation history, has long been predicted by numerical simulations but remains difficult to confir…
FLAMINGO: Tracing the co-evolution of hot gas and black holes in galaxy groups and clusters
Emily E. Costello, Ian G. McCarthy, Jaime Salcido +4
The gas mass fraction of galaxy groups and clusters is a key physical quantity for constraining the impact of feedback processes on large-scale structure. While several modern cosm…
DARKSKIES: A suite of super-sampled zoom-in simulations of galaxy clusters with self-interacting dark matter
David Harvey, Yves Revaz, Matthieu Schaller +3
We present the "DARKSKIES" suite of one hundred, zoom-in hydrodynamic simulations of massive ( galaxy clusters with self-interacting dark matt…
Impact of line-of-sight structure on weak lensing observables of galaxy clusters
Felix Vecchi, David Harvey, James Nightingale +3
Weak gravitational lensing observations of galaxy clusters are sensitive to all mass along the line-of-sight, introducing systematic and additional statistical uncertainties due to…
Joint X-ray, kinetic Sunyaev-Zeldovich, and weak lensing measurements: toward a consensus picture of efficient gas expulsion from groups and clusters
Jared Siegel, Alexandra Amon, Ian G. McCarthy +7
There is no consensus on how baryon feedback shapes the underlying matter distribution from either simulations or observations. We confront the uncertain landscape by jointly analy…
Non-explosive pre-supernova feedback in the COLIBRE model of galaxy formation
Alejandro Benítez-Llambay, Sylvia Ploeckinger, Joop Schaye +7
We present the implementation and testing of a subgrid non-explosive pre-supernova (NEPS) feedback module for the COLIBRE model of galaxy formation. The NEPS module incorporates th…
Nulling baryonic feedback in weak lensing surveys using cross-correlations with fast radio bursts
Calvin Leung, Josh Borrow, Kiyoshi W. Masui +4
Baryonic feedback is a leading contaminant in studying dark matter and cosmology using cosmic shear. This has meant omitting much of the data during cosmological inference, or forw…
Signatures of dynamical activity in the hot gas profiles of groups and clusters in the FLAMINGO simulations
Lilia Correa Magnus, Scott T. Kay, Joop Schaye +1
In anticipation of upcoming cosmological surveys, we use the large volume Flamingo hydrodynamical simulations to look for signatures of dynamical activity, focusing on the hot gas…
The evolution of the galaxy stellar mass function and star formation rates in the COLIBRE simulations from redshift 17 to 0
Evgenii Chaikin, Joop Schaye, Matthieu Schaller +7
We investigate the evolution of the galaxy stellar mass function (GSMF) and star formation rates (SFRs) across cosmic time in the COLIBRE simulations of galaxy formation. COLIBRE i…
A hybrid active galactic nucleus feedback model with spinning black holes, winds and jets
Filip Huško, Cedric G. Lacey, Joop Schaye +6
We present a hybrid active galactic nucleus (AGN) feedback model that features three accretion disc states (the thick, thin, and slim discs at low, moderate, and super-Eddington ac…
The resummation model in FLAMINGO: precisely predicting matter power suppression from observed halo baryon fractions
Marcel P. van Daalen, Ioannis Koutalios, Jeger C. Broxterman +4
In order to derive unbiased cosmological parameters from Stage-IV surveys, we need models that can predict the matter power spectrum for at least $k\,\lesssim\,10\,h\mathrm{\,Mpc^{…
COLIBRE: calibrating subgrid feedback in cosmological simulations that include a cold gas phase
Evgenii Chaikin, Joop Schaye, Matthieu Schaller +17
We present the calibration of stellar and active galactic nucleus (AGN) feedback in the subgrid model for the new COLIBRE hydrodynamical simulations of galaxy formation. COLIBRE di…
The impact of galaxy bias on cross-correlation tomography
Sara Maleubre, Matteo Zennaro, David Alonso +3
The cross-correlation of galaxies at different redshifts with other tracers of the large-scale structure can be used to reconstruct the cosmic mean of key physical quantities, and…
The COLIBRE project: cosmological hydrodynamical simulations of galaxy formation and evolution
Joop Schaye, Evgenii Chaikin, Matthieu Schaller +18
We present the COLIBRE galaxy formation model and the COLIBRE suite of cosmological hydrodynamical simulations. COLIBRE includes new models for radiative cooling, dust grains, star…