5 papers
X-ray Cluster Properties in SPH Simulations of Galaxy Clusters
R. Valdarnini
Results from a large set of hydrodynamical SPH simulations of galaxy clusters in a flat LCDM cosmology are used to investigate cluster X-ray properties. The physical modeling of th…
Performance characteristics of a parallel treecode
R. Valdarnini
I describe here the performances of a parallel treecode with individual particle timesteps. The code is based on the Barnes-Hut algorithm and runs cosmological N-body simulations o…
Detection of non-random patterns in large-scale structure
R. Valdarnini
A new method for analyzing the morphological features of point patterns is presented. The method is taken from the study of molecular liquids, where it has been introduced for maki…
Large scale structure formation in mixed dark matter models with a cosmological constant
R. Valdarnini, T. Kahniashvili, B. Novosyadlyj
We study linear power spectra and formation of large scale structures in flat cosmological models with and cold plus hot dark matter components (MLM). The hot component co…
Evolution of Cluster Morphology: X-ray data vs. CDM models
R. Valdarnini, S. Ghizzardi, S. Bonometto
We compare the evolution of morphology in X-ray cluster data and in clusters obtained in a simulation of flat CDM, normalized to the observed cluster abundance. We find that the ev…