Speaker
Description
Recently, several massive structures at redshifts as high as z=8 have been discovered, many of which are thought to be the progenitors of todays most massive clusters of galaxies. The star formation rates observed in these "protoclusters" is much higher than expected, and the origin of these extreme star bursts is currently a matter of heavy debate. Using the power of the state-of-the-art hydrodynamical cosmological simulation suit Magneticum Pathfinder, I study the formation of protocluster like structures at redshifts 4-5, and the evolution of such structures to present-day. I will present starformation and gas properties of the protocluster galaxy members in comparison to state-of-the-art observations, as well as kinematical properties of such very early galaxies, and I will demonstrate what we can learn from the combined approach of simulations and observations about cosmology, the build-up of structures, and the laws of star formation in the early phases of our Universe.
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