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Video: First Galaxies and Quasars in the BlueTides Simulation

In this video from the NCSA Blue Waters Symposium, Tiziana Di Matteo from Carnegie Mellon University presents: First Galaxies and Quasars in the BlueTides Simulation.

We will describe the BlueTides cosmological simulation run with the new version of the code MP-Gadget. The simulation aims to understand the formation of the first quasars and galaxies from the smallest to the rarest and most luminous, and the role of these processes in the reionization of the universe. The simulation is being used to make predictions for the largest telescopes currently planned to study the “end of the Dark Ages” epoch in the early universe, when the first galaxies and quasars form and reionization of the universe takes place. BlueTides has successfully used essentially the entire set of XE6 nodes on the Blue Waters. It follows the evolution of 0.7 trillion particles in a large volume of the universe (600 co-moving Mpc on a side) over the first billion years of the universe’s evolution with a dynamic range of 6 (12) orders of magnitude in space (mass). This makes BlueTides by far the largest cosmological hydrodynamic simulation ever run. BlueTides follows not only hydrodynamics, but also includes models for the physics of galaxy formation, such as radiative processes, star and black hole formation and energy release. We improved the code infrastructure in several ways: memory and threading efficiency and mesh gravity solver.

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