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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…
Dynamics of barred galaxies: effects of disk height
A. Klypin, O. Valenzuela, P. Colin +1
We study dynamics of bars in models of disk galaxies embeded in realistic dark matter halos. We find that disk thickness plays an important, if not dominant, role in the evolution…
The dark outside: the density profile of dark matter haloes beyond the virial radius
Hugo Tavio, Antonio J. Cuesta, Francisco Prada +2
We present an approximation for the average density profile of dark matter haloes in the LambdaCDM cosmological model, which is accurate to within 10--15% even for large radial dis…
The emptiness of voids: yet another over-abundance problem for the LCDM model
A. Tikhonov, A. Klypin
We study the luminosity function, the peculiar velocities, and the sizes of voids in the Local Volume (LV) in observational samples of galaxies which contain galaxies down to MB=-1…
The ART of Cosmological Simulations
Stefan Gottloeber, Anatoly Klypin
We describe the basic ideas of MPI parallelization of the N-body Adaptive Refinement Tree (ART) code. The code uses self-adaptive domain decomposition where boundaries of the domai…
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…