The impact of feedback on the low redshift Intergalactic Medium (2009)
Tornatore, Luca, Borgani, Stefano, Viel, Matteo, Springel, Volker
We analyse the evolution of the properties of the low-redshift Intergalactic Medium (IGM) using high-resolution hydrodynamic simulations that include a detailed chemical evolution model. We focus on...
Cosmological simulations of galaxy clusters (2009)
Borgani, Stefano, Kravtsov, Andrey
We review recent progress in the description of the formation and evolution of galaxy clusters in a cosmological context by using numerical simulations. We focus our presentation on the comparison...
Damped Lyman-alpha systems in high-resolution hydrodynamical simulations (2009)
Tescari, Edoardo, Viel, Matteo, Tornatore, Luca, Borgani, Stefano
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 numerical code used is a...
Salucci, Paolo, Borgani, Stefano, Frenk, Carlos, Moscardini, Lauro, Viel, Matteo
In the study of the process of cosmic structure formation numerical simulations are crucial tools to interface observational data to theoretical models and to investigate issues otherwise unexplored....
X-MAS2: Study Systematics on the ICM Metallicity Measurements (2008)
Rasia, Elena, Mazzotta, Pasquale, Bourdin, Herve, Borgani, Stefano, Tornatore, Luca, Ettori, Stefano, ...
X-ray measurements of the intracluster medium metallicity are becoming more and more frequent due to the availability of powerful X-ray telescopes with excellent spatial and spectral resolutions. The...
How does gas cool in dark matter haloes? (2008)
Viola, M., Monaco, Pierluigi, Borgani, Stefano, Murante, Giuseppe, Tornatore, Luca
In order to study the process of cooling in dark-matter (DM) halos and assess how well simple models can represent it, we run a set of radiative SPH hydrodynamical simulations of isolated halos, with...
Chemical enrichment of galaxy clusters from hydrodynamical simulations (2007)
Tornatore, Luca, Borgani, Stefano, Dolag, Klaus, Matteucci, Francesca
We present cosmological hydrodynamical simulations of galaxy clusters aimed at studying the process of metal enrichment of the intra-cluster medium (ICM). These simulations have been performed by...
1 THE LARGE{SCALE STRUCTURE OF THE UNIVERSE (2007)
In these Lectures I provide general notions about the formation and evolutions of cosmic structures, like galaxies and clusters of galaxies, within the standard cosmological scenario, based on a...
Borgani, Stefano, Dolag, Klaus, Murante, Giuseppe, Cheng, L.M., Springel, Volker, Diaferio, Antonaldo, ...
We discuss an extended set of Tree+SPH simulations of galaxy clusters, with the goal of investigating the interplay between numerical resolution effects and star-formation/feedback processes. The...
Properties of the galaxy population in hydrodynamical simulations of clusters (2007)
Saro, Alexandro, Borgani, Stefano, Tornatore, Luca, Dolag, Klaus, Murante, Giuseppe, Biviano, Andrea, ...
We present a study of the galaxy population predicted by hydrodynamical simulations for a set of 19 galaxy clusters based on the GADGET-2 Tree+SPH code. These simulations include gas cooling, star...
Murante, Guiseppe, Giovalli, Martina, Gerhard, Ortwin, Arnaboldi, Magda, Borgani, Stefano, Dolag, Klaus
Murante, Guiseppe, Giovalli, Martina, Gerhard, Ortwin, Arnaboldi, Magda, Borgani, Stefano, Dolag, Klaus
Evolution in the iron abundance of the ICM (2007)
Balestra, Italo, Tozzi, Paolo, Ettori, Stefano, Rosati, Piero, Borgani, Stefano, Mainieri, Vincenzo, ...
Monaco, Pierluigi, Murante, Giuseppe, Borgani, Stefano, Fontanot, Fabio
The high end of the stellar mass function of galaxies is observed to have little evolution since z~1. This represents a stringent constraint for merger--based models, aimed at explaining the...
Cosmology with clusters of galaxies (2006)
In this Chapter I review the role that galaxy clusters play as tools to constrain cosmological parameters. I will concentrate mostly on the application of the mass function of galaxy clusters, while...
Monaco, Pierluigi, Murante, Giuseppe, Borgani, Stefano, Fontanot, Fabio
The high end of the stellar mass function of galaxies is observed to have little evolution since z~1. This represents a stringent constraint for merger-based models, aimed at explaining the evolution...
CODEX : measuring the expansion of the universe (2005)
Pasquini, Luca, Cristiani, Stefano, Dekker, Hans, Haehnelt, Martin, Molaro, Paolo, Pepe, Francesco, ...
CODEX, a high-resolution, super-stable spectrograph to be fed by OWL, the most powerful telescope ever conceived, will for the first time provide the possibility of directly measuring the change of...
CODEX : measuring the expansion of the universe (2005)
Pasquini, Luca, Cristiani, Stefano, Dekker, Hans, Haehnelt, Martin, Molaro, Paolo, Pepe, Francesco, ...
CODEX, a high-resolution, super-stable spectrograph to be fed by OWL, the most powerful telescope ever conceived, will for the first time provide the possibility of directly measuring the change of...
CODEX : measuring the expansion of the universe (2005)
Pasquini, Luca, Cristiani, Stefano, Dekker, Hans, Haehnelt, Martin, Molaro, Paolo, Pepe, Francesco, ...
CODEX, a high-resolution, super-stable spectrograph to be fed by OWL, the most powerful telescope ever conceived, will for the first time provide the possibility of directly measuring the change of...
XMM-Newton survey of IGM: news for the modified entropy scaling (2004)
Finoguenov, Alexis, Borgani, Stefano, Davis, David S., Mulchaey, John S., Osmond, John P. F., Ponman, Trevor J., ...
Recovering the Initial Condition of our Local Universe from NOG and PSCz Catalogues (2003)
Fontanot, Fabio, Monaco, Pierluigi, Borgani, Stefano
We apply the ZTRACE algorithm to the optical NOG and infra-red PSCz galaxy catalogues to reconstruct the pattern of primordial fluctuations that have generated our local Universe. We check that the...
The Evolution of X-ray Clusters of Galaxies (2002)
Rosati, Piero, Borgani, Stefano, Norman, Colin
Considerable progress has been made over the last decade in the study of the evolutionary trends of the population of galaxy clusters in the Universe. In this review we focus on observations in the...
SNe heating and the chemical evolution of the intra-cluster medium (2002)
Pipino, Antonio, Matteucci, Francesca, Borgani, Stefano, Biviano, Andrea
We compute the chemical and thermal history of the intra-cluster medium in rich and poor clusters under the assumption that supernovae (I, II) are the major responsible both for the chemical...
Resolving the hard x-ray background in the Chandra Deep Field South (2002)
Gilli, Roberto, Giacconi, Riccardo, Tozzi, Paolo, Rosati, Piero, Hasinger, Günther, Kewley, Lisa, ...
Summary: Clusters of Galaxies and the High Redshift Universe Observed in X-Rays (2001)
This Meeting featured the recent advancements in our understanding of galaxy clusters and the distant Universe, achieved by the past and new generation of X-ray satellites. I summarize here the main...
Pierpaoli, Elena, Garcia-Bellido, Juan, Borgani, Stefano
In this paper we study the isocurvature mode contribution to the cosmic microwave background anisotropies and the large scale structure power spectrum, for a two-field model of inflation proposed by...
Optical Luminosities and Mass--to--Light Ratios of Nearby Galaxy Clusters (1999)
Girardi, Marisa, Borgani, Stefano, Giuricin, Giuliano, Mardirossian, Fabio, Mezzetti, Marino
Seeking the Local Convergence Depth. The Abell Cluster Dipole Flow to 200 Mpc/h (1998)
Dale, Daniel A., Giovanelli, Riccardo, Haynes, Martha P., Campusano, Luis E., Hardy, Eduardo, Borgani, Stefano
We have obtained new Tully-Fisher (TF) peculiar velocity measurements for 52 Abell galaxy clusters distributed throughout the sky between ~ 50 and 200 Mpc/h.The measurements are based on I band...
Clusters in Various Cosmological Models: Abundance and Evolution (1997)
Gross, Michael A. K., Somerville, Rachel S., Primack, Joel R., Borgani, Stefano, Girardi, Marisa
The combination of measurements of the local abundance of rich clusters of galaxies and its evolution to higher redshift offers the possibility of a direct measurement of $\Omega_0$ with little...
The Formation of Cosmic Structures in a Light Gravitino Dominated Universe (1997)
Pierpaoli, Elena, Borgani, Stefano, Masiero, Antonio, Yamaguchi, Masahiro
We analyse the formation of cosmic structures in models where the dark matter is dominated by light gravitinos with mass of $ 100$ eV -- 1 keV, as predicted by gauge-mediated supersymmetry (SUSY)...
Dark Matter and the Scale of SUSY Breaking (1997)
Borgani, Stefano, Masiero, Antonio
We review the prospects for dark matter (DM) in two classes of supersymmetric (SUSY) models which are characterized by the different mechanism of SUSY breaking, namely the more common supergravity...
Light Gravitinos as Mixed Dark Matter (1996)
Borgani, Stefano, Masiero, Antonio, Yamaguchi, Masahiro
In theories with a gauge-mediated mechanism of supersymmetry breaking the gravitino is likely to be the lightest superparticle and, hence, a candidate for dark matter. We show that the decay of the...
Large-Scale Structure in Mixed Dark Matter Models with a Non-thermal Volatile Component (1996)
Pierpaoli, Elena, Coles, Peter, Bonometto, Silvio, Borgani, Stefano
We investigate the properties of large--scale structure predicted in a class of mixed dark matter models in which the volatile component (made of particles with high rms velocity) derives from the...
The Cluster Distribution as a Test of Dark Matter Models. III. the Cluster Velocity Field (1995)
Moscardini, Lauro, Branchini, Enzo, Brunozzi, Paolo Tini, Borgani, Stefano, Plionis, Manolis, Coles, Peter
We study the large-scale velocity fields traced by galaxy clusters in numerical simulations of a box of side 960 $h^{-1}$ Mpc, and compare them with available data on real clusters. In order to test...
Advanced Statistical Methods for Large-Scale Structure Studies (1995)
These Lecture Notes are devoted to an introductory description of some of the most widely applied statistical methods for the analysis of the Large-Scale Structure (LSS) of the Universe. Rather than...
The epoch of structure formation in blue mixed dark matter models (1995)
Borgani, Stefano, Lucchin, Francesco, Matarrese, Sabino, Moscardini, Lauro
Recent data on the high--redshift abundance of damped Ly$\alpha$ systems are compared with theoretical predictions for `blue' (i.e. $n>1$) Mixed Dark Matter models. The results show that decreasing...
Testing DM models against the cluster distribution (1995)
Plionis, Manolis, Borgani, Stefano, Moscardini, Lauro, Coles, Peter
We study the clustering properties of numerical simulations of the cluster distribution, which are based on the Zel'dovich approximation, and compare them with an extended redshift sample of...
Damped Lyman Alpha Systems vs. Cold + Hot Dark Matter (1994)
Klypin, Anatoly, Borgani, Stefano, Holtzman, Jon, Primack, Joel
Damped Ly$\alpha$ systems provide possibly the most significant evidence for early structure formation, and thus a stringent constraint on the Cold + Hot Dark Matter (CHDM) cosmology. Using the...
Damped Lyman Alpha Systems vs. Cold + Hot Dark Matter (1994)
Klypin, Anatoly, Borgani, Stefano, Holtzman, Jon, Primack, Joel
Although the Cold + Hot Dark Matter (CHDM) cosmology provides perhaps the best fit of any model to all the available data at the current epoch, CHDM produces structure at relatively low redshifts and...
Scaling in the Universe (1994)
The aim of this review article is to give a comprehensive description of the scaling properties detected for the distribution of cosmic structures. Due to the great variety of statistical methods to...
Large-Scale Clustering in Bubble Models (1993)
Amendola, Luca, Borgani, Stefano
We analyze the statistical properties of bubble models for the large-scale distribution of galaxies. To this aim, we realize static simulations, in which galaxies are mostly randomly arranged in the...