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TNGC-SIDM I: Evolution of massive cluster mergers under the self-interacting dark matter paradigm
Wonki Lee, Dylan Nelson, Myungkook J. Jee +8
Merging galaxy clusters provide an ideal laboratory for testing the self-interacting nature of dark matter. In this paper, we present a pilot study of magnetohydrodynamical cosmolo…
The AIDA-TNG project: dark matter profiles and concentrations in alternative dark matter models
Giulia Despali, Carlo Giocoli, Lauro Moscardini +3
In the standard Cold Dark Matter (CDM) scenario, the density profiles of dark matter haloes are well described by analytical models linking their concentration to halo mass. Altern…
The AIDA-TNG project: 3D halo shapes
C. Giocoli, G. Despali, L. Moscardini +4
Context. The shapes of dark matter halos can be used to constrain the fundamental properties of dark matter. In standard Cold Dark Matter (CDM) cosmologies, halos are typically tri…
The origin of scatter in the X-ray luminosity - halo mass relation of galaxy clusters
Joey Braspenning, Joop Schaye, Annalisa Pillepich +1
Galaxy groups and clusters are excellent probes of large-scale structure and are shaped by some of the most energetic physical processes in the Universe. They follow a tight scalin…
Modelling the selection of galaxy groups with end to end simulations
R. Seppi, D. Eckert, A. Finoguenov +13
Feedback from supernovae and AGN shapes galaxy formation and evolution, yet its impact remains unclear. Galaxy groups offer a crucial probe, as their binding energy is comparable t…
Introducing the AIDA-TNG project: galaxy formation in alternative dark matter models
Giulia Despali, Lauro Moscardini, Dylan Nelson +3
We introduce the AIDA-TNG project, a suite of cosmological magnetohydrodynamic simulations that simultaneously model galaxy formation and different variations of the underlying dar…
Preparing for low surface brightness science with the Vera C. Rubin Observatory: A Comparison of Observable and Simulated Intracluster Light Fractions
Sarah Brough, Syeda Lammim Ahad, Yannick M. Bahe +13
Intracluster Light (ICL) provides an important record of the interactions galaxy clusters have undergone. However, we are limited in our understanding by our measurement methods. T…
On the nature of disks at high redshift seen by JWST/CEERS with contrastive learning and cosmological simulations
J. Vega-Ferrero, M. Huertas-Company, L. Costantin +26
Visual inspections of the first optical rest-frame images from JWST have indicated a surprisingly high fraction of disk galaxies at high redshifts. Here, we alternatively apply sel…
Co-evolution of massive black holes and their host galaxies at high redshift: discrepancies from six cosmological simulations and the key role of JWST
Melanie Habouzit, Masafusa Onoue, Eduardo Banados +7
The James Webb Space Telescope will have the power to characterize high-redshift quasars at z>6 with an unprecedented depth and spatial resolution. While the brightest quasars at s…
Magnetization of the intergalactic medium in the IllustrisTNG simulations: the importance of extended, outflow-driven bubbles
Andres Aramburo Garcia, Kyrylo Bondarenko, Alexey Boyarsky +3
We study the effects of galaxy formation physics on the magnetization of the intergalactic medium (IGM) using the IllustrisTNG simulations. We demonstrate that large-scale regions…
The CAMELS project: Cosmology and Astrophysics with MachinE Learning Simulations
Francisco Villaescusa-Navarro, Daniel Anglés-Alcázar, Shy Genel +19
We present the Cosmology and Astrophysics with MachinE Learning Simulations --CAMELS-- project. CAMELS is a suite of 4,233 cosmological simulations of volu…
Correlations between supermassive black holes and hot gas atmospheres in IllustrisTNG and X-ray observations
Nhut Truong, Annalisa Pillepich, Norbert Werner
Recent X-ray observations have revealed remarkable correlations between the masses of central supermassive black holes (SMBHs) and the X-ray properties of the hot atmospheres perme…
Teaching neural networks to generate Fast Sunyaev Zel'dovich Maps
Leander Thiele, Francisco Villaescusa-Navarro, David N. Spergel +2
The thermal Sunyaev-Zel'dovich (tSZ) and the kinematic Sunyaev-Zel'dovich (kSZ) effects trace the distribution of electron pressure and momentum in the hot Universe. These observab…
Galaxy bias and primordial non-Gaussianity: insights from galaxy formation simulations with IllustrisTNG
Alexandre Barreira, Giovanni Cabass, Fabian Schmidt +2
We study the impact that large-scale perturbations of (i) the matter density and (ii) the primordial gravitational potential with local primordial non-Gaussianity (PNG) have on gal…
Revealing the galaxy-halo connection in IllustrisTNG
Sownak Bose, Daniel J. Eisenstein, Lars Hernquist +5
We use the IllustrisTNG (TNG) simulations to explore the galaxy-halo connection as inferred from state-of-the-art cosmological, magnetohydrodynamical simulations. With the high mas…
Separate Universe Simulations with IllustrisTNG: baryonic effects on power spectrum responses and higher-order statistics
Alexandre Barreira, Dylan Nelson, Annalisa Pillepich +5
We measure power spectrum response functions in the presence of baryonic physical processes using separate universe simulations with the IllustrisTNG galaxy formation model. The re…
4MOST Consortium Survey 5: eROSITA Galaxy Cluster Redshift Survey
A. Finoguenov, A. Merloni, J. Comparat +11
Groups and clusters of galaxies are a current focus of astronomical research owing to their role in determining the environmental effects on galaxies and the constraints they provi…
A Deep Learning Approach to Galaxy Cluster X-ray Masses
M. Ntampaka, J. ZuHone, D. Eisenstein +9
We present a machine-learning approach for estimating galaxy cluster masses from Chandra mock images. We utilize a Convolutional Neural Network (CNN), a deep machine learning tool…
Baryons in the CosmicWeb of IllustrisTNG - I: Gas in Knots, Filaments, Sheets and Voids
Davide Martizzi, Mark Vogelsberger, Maria Celeste Artale +9
We analyze the IllustrisTNG simulations to study the mass, volume fraction and phase distribution of gaseous baryons embedded in the knots, filaments, sheets and voids of the Cosmi…
Forecasts on dark energy from the X-ray cluster survey with eROSITA: constraints from counts and clustering
Annalisa Pillepich, Thomas H. Reiprich, Cristiano Porciani +2
We forecast the potential of the forthcoming X-ray galaxy-cluster survey with eROSITA to constrain dark-energy models. We focus on spatially-flat cosmological scenarios with either…
Ingredients for 21cm intensity mapping
Francisco Villaescusa-Navarro, Shy Genel, Emanuele Castorina +11
[Abridged] We study the abundance and clustering properties of HI at redshifts using TNG100, a large state-of-the-art magneto-hydrodynamic simulation of a 75 Mpc/h bo…
ETHOS -- an effective theory of structure formation: predictions for the high-redshift Universe -- abundance of galaxies and reionization
Mark R. Lovell, Jesús Zavala, Mark Vogelsberger +6
We contrast predictions for the high-redshift galaxy population and reionization history between cold dark matter (CDM) and an alternative self-interacting dark matter model based…
A census of cool core galaxy clusters in IllustrisTNG
David J. Barnes, Mark Vogelsberger, Rahul Kannan +10
The thermodynamic structure of hot gas in galaxy clusters is sensitive to astrophysical processes and typically difficult to model with galaxy formation simulations. We explore the…
The uniformity and time-invariance of the intra-cluster metal distribution in galaxy clusters from the IllustrisTNG simulations
Mark Vogelsberger, Federico Marinacci, Paul Torrey +8
The distribution of metals in the intra-cluster medium encodes important information about the enrichment history and formation of galaxy clusters. Here we explore the metal conten…