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Primordial non-Gaussianities in the Intergalactic Medium
M. Viel, E. Branchini, K. Dolag +3
We present results from the first high-resolution hydrodynamical simulations of non-Gaussian cosmological models. We focus on the statistical properties of the transmitted Lyman-al…
Reconstructing mass profiles of simulated galaxy clusters by combining Sunyaev-Zeldovich and X-ray images
S. Ameglio, S. Borgani, E. Pierpaoli +3
We present a method to recover mass profiles of galaxy clusters by combining data on thermal Sunyaev-Zeldovich (tSZ) and X-ray imaging, thereby avoiding to use any information on X…
Simulating the formation of a proto-cluster at z~2
A. Saro, S. Borgani, L. Tornatore +3
We present results from two high-resolution hydrodynamical simulations of proto-cluster regions at z~2.1. The simulations have been compared to observational results for the socall…
UHECR observations and lensing in the magnetic field of the Virgo cluster
K. Dolag, M. Kachelriess, D. V. Semikoz
We discuss how lensing by magnetic fields in galaxy clusters affects ultrahigh energy cosmic ray (UHECR) observations. As specific example, we use Virgo together with the cluster m…
The effect of gas-dynamics on semi-analytic modeling of cluster galaxies
A. Saro, G. De Lucia, K. Dolag +1
We study the degree to which non-radiative gas dynamics affects the merger histories of haloes along with subsequent predictions from a semi-analytic model (SAM) of galaxy formatio…
Substructures in hydrodynamical cluster simulations
K. Dolag, S. Borgani, G. Murante +1
The abundance and structure of dark matter subhalos has been analyzed extensively in recent studies of dark matter-only simulations, but comparatively little is known about the imp…