292 citations · 5.5k across the 107 of their papers we have counts for
18 papers · 1 filter
A Dynamical Classification of the Cosmic Web
J. E. Forero-Romero, Y. Hoffman, S. Gottloeber +2
A dynamical classification of the cosmic web is proposed. The large scale environment is classified into four web types: voids, sheets, filaments and knots. The classification is b…
Is WMAP3 normalization compatible with the X-Ray cluster abundance?
Gustavo Yepes, Raul Sevilla, Stefan Gottloeber +1
We present the mass and X-ray temperature functions derived from a sample of more than 15,000 galaxy clusters of the MareNostrum Universe cosmological SPH simulations. In these sim…
The Shape-Alignment relation in CDM Cosmic Structures
S. Basilakos, M. Plionis, G. Yepes +2
In this paper we study the supercluster - cluster morphological properties using one of the largest ( SPH+N-body simulations of large scale structure formation in…
Supersonic Motions of Galaxies in Clusters
Andreas Faltenbacher, Andrey V. Kravtsov, Daisuke Nagai +1
We study motions of galaxies in galaxy clusters formed in the concordance LCDM cosmology. We use high-resolution cosmological simulations that follow dynamics of dark matter and ga…
Correlations in the orientations of galaxy clusters
Andreas Faltenbacher, Martin Kerscher, Stefan Gottloeber +1
The relative orientation of clusters' major elongation axes and clusters' angular momentum is studied using a large N-body simulation in a box of 500 Mpc/h base length for a standa…
Spatial distribution of galactic halos and their merger histories
Stefan Gottloeber, Martin Kerscher, Andrey V. Kravtsov +3
We use a novel statistical tool, the mark correlation functions (MCFs), to study clustering of galaxy-size halos as a function of their properties and environment in a high-resolut…
Numerical simulations of the cosmic star formation history
Y. Ascasibar, G. Yepes, S. Gottloeber +1
The cosmic star formation history in Cold Dark Matter dominated cosmological scenarios is studied by means of hydrodynamical numerical simulations. In particular, we explore a low…
Constrained Simulations of the Real Universe: the Local Supercluster
Anatoly Klypin, Yehuda Hoffman, Andrey Kravtsov +1
We present cosmological simulations which closely mimic the real Universe within 100Mpc of the Local Group. The simulations, called Constrained Simulations, reproduce the large-sca…
Merging history as a function of halo environment
Stefan Gottloeber, Anatoly Klypin, Andrey Kravtsov
According to the hierarchical scenario, galaxies form via merging and accretion of small objects. Using N-body simulations, we study the frequency of merging events in the history…
On effects of resolution in dissipationless cosmological simulations
Alexander Knebe, Andrey V. Kravtsov, Stefan Gottloeber +1
We present a study of numerical effects in dissipationless cosmological simulations. The numerical effects are evaluated and studied by comparing results of a series of 64^3-partic…
Merging Rate of Dark Matter Halos: Evolution and Dependence on Environment
Stefan Gottloeber, Anatoly Klypin, Andrey V. Kravtsov
We discuss the impact of the cosmological environment on the evolution of dark matter halos using a high-resolution simulation within a spatially flat LCDM cosmology.
Constraining cosmological models with cluster power spectra
J. Retzlaff, S. Borgani, S. Gottloeber +2
Using extensive N-body simulations we estimate redshift space power spectra of clusters of galaxies for different cosmological models (SCDM, TCDM, CHDM, Lambda-CDM, OCDM, BSI, tau-…
Cosmology Using Cluster Internal Velocity Dispersions
S. Borgani, A. Gardini, M. Girardi +1
We compare the distribution of internal velocity dispersions of galaxy clusters for an observational sample to those obtained from a set of N-body simulations of seven COBE-normali…
A 120-Mpc Periodicity in the Three-Dimensional Distribution of Galaxy Superclusters
J. Einasto, M. Einasto, S. Gottlöber +7
Using a new compilation of available data on galaxy clusters and superclusters we present evidence for a quasiregular three-dimensional network of rich superclusters and voids, wit…
The Power Spectrum of Microwave Background Temperature Anisotropies Measured by the Tenerife Experiment
F. Atrio-Barandela, S. Gottl"ober, J. P. M"ucket
We determine the slope of the power spectrum of the matter perturbations from the Tenerife observations of the cosmic background radiation temperature anisotropies. We compute the…
Large-scale structure formation for power spectra with broken scale invariance
R. Kates, V. Müller, S. Gottlöber +2
We have simulated the formation of large-scale structure arising from COBE-normalized spectra computed by convolving a primordial double-inflation perturbation spectrum with the CD…
Optimizing Higher-Order Lagrangian Perturbation Theory for Standard CDM and BSI models
Arno G. Weiss, Stefan Gottloeber, Thomas Buchert
We investigate the performance of Lagrangian perturbation theory up to the second order for two scenarios of cosmological large-scale structure formation, SCDM (standard cold dark…
The Primordial Perturbation Spectrum and Large Scale Structure
Stefan Gottloeber
Observational constraints on standard CDM spectra and perturbation spectra with broken scale invariance are discussed.