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The gas density animation shows that large-scale structure emerges as intersecting filaments. These filaments represent sheets of galaxies spanning upwards of 100 million light years end-to-end. Galaxies cluster at the intersections that range in length from 1-10 million light years.
In the gas temperature movie, red regions indicate the hottest gas. Accumulating at the intersections of the filaments, this gas is thought to emit high-energy radiation, especially X-rays, making it possible for the first time to compare the simulated results with actual observations of galaxy clusters.
The third movie shows a the evolution of gas density in a simulation which incorporate both "hot" and "cold" dark matter (i.e. "mixed dark matter") and which was performed at a considerably higher resolution (513^3 zones).
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