A Detailed Simulation of the Universe Creates Structures Very Similar to the Milky Way and its Surroundings - Universe Today universetoday storybywill
At the very center of the simulation is the Milky Way galaxy and our nearest massive neighbour, the Andromeda galaxy . Credit Dr Stuart McAlpine“It is immensely exciting to see the familiar structures that we know exist around us emerge from a computer calculation. The simulations simply reveal the consequences of the laws of physics acting on the dark matter and cosmic gas throughout the 13.7 billion years that our universe has been around.
“The fact that we have been able to reproduce these familiar structures provides impressive support for the standard Cold Dark Matter model and tells us that we are on the right track to understand the evolution of the entire Universe.” Another interesting finding was the prediction that our patch of the Universe has fewer galaxies on average due to a large-scale “matter underdensity.” While this does not contradict the CDM model, it could have consequences for astrophysicists interpreting observed galaxy surveys. “This project is truly ground-breaking,” said co-author Dr. Matthieu Schaller from Leiden University.
Dr. Stuart McAlpine, a former Ph.D. student at Durham and a current postdoctoral researcher at the University of Helsinki, added: “By simulating our Universe, as we see it, we are one step closer to understanding the nature of our cosmos. This project provides an important bridge between decades of theory and astronomical observations.”
Moving forward, the international team plans to further analyze the simulation in the hopes of providing further stringent tests of the CDM model.
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