687 citations · 5.7k across the 78 of their papers we have counts for
25 papers · 1 filter
Dianoga simulations of galaxy clusters and groups: Properties of the baryonic components
Stefano Borgani, Alice Damiano, Elena Rasia +12
We introduce the Dianoga set of cosmological simulations of galaxy clusters and groups, specifically aimed at studying the impact of the implementation of AGN feedback and star for…
Euclid preparation. Simulating thousands of Euclid spectroscopic skies
Euclid Collaboration, P. Monaco, G. Parimbelli +303
We present two extensive sets of 3500+1000 simulations of dark matter haloes on the past light cone, and two corresponding sets of simulated (`mock') galaxy catalogues that represe…
The full iron budget in simulated galaxy clusters: The chemistry between gas and stars
Veronica Biffi, Elena Rasia, Stefano Borgani +5
Heavy chemical elements such as iron in the intra-cluster medium (ICM) of galaxy clusters are a signpost of the interaction between the gas and stellar components. Observations of…
Dynamical friction and evolution of black holes in cosmological simulations: a new implementation in OpenGadget3
Alice Damiano, Milena Valentini, Stefano Borgani +5
We implement a sub-resolution prescription for the unresolved dynamical friction onto black holes (BHs) in the OpenGadget3 code. We carry out cosmological simulations of a volume o…
GrGadget: an N-body TreePM relativistic code for cosmological simulations
Eduardo Quintana-Miranda, Pierluigi Monaco, Luca Tornatore
We present the merging of the Particle-Mesh (PM) relativistic Gevolution code with the TreePM Gadget-4 code, with the aim of studying general relativity effects in cosmology. Our c…
Galaxies in the central regions of simulated galaxy clusters
Antonio Ragagnin, Massimo Meneghetti, Luigi Bassini +20
In this paper, we assess the impact of numerical resolution and of the implementation of energy input from AGN feedback models on the inner structure of cluster sub-haloes in hydro…
The probability of galaxy-galaxy strong lensing events in hydrodynamical simulations of galaxy clusters
Massimo Meneghetti, Antonio Ragagnin, Stefano Borgani +27
Meneghetti et al. (2020) recently reported an excess of galaxy-galaxy strong lensing (GGSL) in galaxy clusters compared to expectations from the LCDM cosmological model. Theoretica…
On the phase-space structure of galaxy clusters from cosmological simulations
I. Marini, A. Saro, S. Borgani +8
Cosmological N-body simulations represent an excellent tool to study the formation and evolution of dark matter (DM) halos and the mechanisms that have originated the universal pro…
Athena X-IFU synthetic observations of galaxy clusters to probe the chemical enrichment of the Universe
E. Cucchetti, E. Pointecouteau, P. Peille +14
Answers to the metal production of the Universe can be found in galaxy clusters, notably within their Intra-Cluster Medium (ICM). The X-ray Integral Field Unit (X-IFU) on board the…
The history of chemical enrichment in the intracluster medium from cosmological simulations
V. Biffi, S. Planelles, S. Borgani +8
The distribution of metals in the intracluster medium (ICM) of galaxy clusters provides valuable information on their formation and evolution, on the connection with the cosmic sta…
Simulated star formation rate functions at z~4-7, and the role of feedback in high-z galaxies
Edoardo Tescari, Antonios Katsianis, Stuart Wyithe +5
We study the role of feedback from supernovae and black holes in the evolution of the star formation rate function (SFRF) of z~4-7 galaxies. We use a new set of cosmological hydrod…
Galactic Winds in Cosmological Simulations of the Circumgalactic Medium
Paramita Barai, Matteo Viel, Stefano Borgani +7
(Abridged) We explore new observationally-constrained sub-resolution models of galactic outflows and investigate their impact on the circumgalactic medium (CGM) over redshifts z =…
Baryon Census in Hydrodynamical Simulations of Galaxy Clusters
Susana Planelles, Stefano Borgani, Klaus Dolag +4
We carry out an analysis of a set of cosmological SPH hydrodynamical simulations of galaxy clusters and groups aimed at studying the total baryon budget in clusters, and how this b…
How Baryonic Processes affect Strong Lensing properties of Simulated Galaxy Clusters
Madhura Killedar, Stefano Borgani, Massimo Meneghetti +3
The observed abundance of giant arcs produced by galaxy cluster lenses and the measured Einstein radii have presented a source of tension for LCDM. Previous cosmological tests for…
Tomographic weak lensing shear spectra from large N-body and hydrodynamical simulations
Luciano Casarini, Silvio A. Bonometto, Stefano Borgani +5
Forthcoming experiments will enable us to determine tomographic shear spectra at a high precision level. Most predictions about them have until now been biased on algorithms yieldi…
Lensing and X-ray mass estimates of clusters (SIMULATION)
E. Rasia, M. Meneghetti, R. Martino +10
[Abridged] We present a comparison between weak-lensing (WL) and X-ray mass estimates of a sample of numerically simulated clusters. The sample consists on the 20 most massive obje…
The effects of baryons on the halo mass function
Weiguang Cui, Stefano Borgani, Klaus Dolag +2
We present an analysis of the effects of baryon physics on the halo mass function. The analysis is based on simulations of a cosmological volume. Besides a Dark Matter (DM) only si…
X-ray mass proxies from hydrodynamic simulations of galaxy clusters (paper I)
D. Fabjan, S. Borgani, E. Rasia +4
We present a detailed study of scaling relations between total cluster mass and three mass proxies based on X-ray observables: temperature of the intra-cluster medium, gas mass and…
Cosmic evolution of the CIV in high-resolution hydrodynamic simulations
E. Tescari, M. Viel, V. D'Odorico +4
We investigate the properties of triply ionized Carbon (CIV) in the Intergalactic Medium using a set of high-resolution and large box-size cosmological hydrodynamic simulations of…
The transition from population III to population II-I star formation
U. Maio, B. Ciardi, K. Dolag +2
We present results from the first cosmological simulations which study the onset of primordial, metal-free (population III), cosmic star formation and the transition to the present…
Simulating the effect of AGN feedback on the metal enrichment of galaxy clusters
D. Fabjan, S. Borgani, L. Tornatore +3
We present a study of the effect of AGN feedback on metal enrichment and thermal properties of the intracluster medium (ICM) in hydrodynamical simulations. The cosmological simulat…
Lyman Alpha Emitter Evolution in the Reionization Epoch
P. Dayal, A. Ferrara, A. Saro +3
Combining cosmological SPH simulations with a previously developed Lyman Alpha production/transmission model and the Early Reionization Model (ERM, reionization ends at redshift z~…
The onset of star formation in primordial haloes
Umberto Maio, Benedetta Ciardi, Naoki Yoshida +2
Star formation remains an unsolved problem in astrophysics. Numerical studies of large-scale structure simulations cannot resolve the whole process and their approach usually assum…
Damped Lyman-alpha systems in high-resolution hydrodynamical simulations
Edoardo Tescari, Matteo Viel, Luca Tornatore +1
We investigate the properties of Damped Lyman-alpha systems (DLAs) using high-resolution and large box-size cosmological hydrodynamical simulations of a LambdaCDM model. The numeri…