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Comparison of clustering properties of observed objects and dark matter halos on different mass and spatial scales
A. V. Tikhonov, A. I. Kopylov, S. Gottlober +1
We investigate the large-scale distribution of galaxy clusters taken from several X-ray catalogs. Different statistics of clustering like the conditional correlation function (CCF)…
Toward a halo mass function for precision cosmology: the limits of universality
Jeremy L Tinker, Andrey V Kravtsov, Anatoly Klypin +5
We measure the mass function of dark matter halos in a large set of collisionless cosmological simulations of flat LCDM cosmology and investigate its evolution at z<~2. Halos are i…
Statistics of Voids in the 2dF Galaxy Redshift Survey
Santiago G. Patiri, Juan Betancort-Rijo, Francisco Prada +2
We present a statistical analysis of voids in the 2dF galaxy redshift survey (2dFGRS). In order to detect the voids, we have developed two robust algorithms. We define voids as non…
The structure of the ICM from High Resolution SPH simulations
G. Yepes, Y. Ascasibar, R. Sevilla +2
We present results from a set of high (512^3 effective resolution), and ultra-high (1024^3) SPH adiabatic cosmological simulations of cluster formation aimed at studying the intern…
Numerical Simulations of Galaxy Formation: Cooling, Heating, Star Formation
Anatoly Klypin, Stefan Gottlober, Gustavo Yepes
Formation of luminous matter in the Universe is a complicated process, which includes many processes and components. It is the vastly different scales involved in the process (from…