Simulation of a Galaxy, most detailed large-scale simulation to date

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From, https://www.universetoday.com/143977/watch-a-simulation-of-a-galaxy-from-the-big-bang-until-the-present-day/

"This was made possible by the Hazel Hen supercomputer in Stuttgart, where 16,000 cores worked together for more than a year – the longest and most resource-intensive simulation to date. The simulation itself consists of a cube of space measuring more than 230 million light-years in diameter that contains more than 20 billion particles representing dark matter, stars, cosmic gas, magnetic fields, and supermassive black holes (SMBHs). "

 

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Of course they stop the shown simulation right before a major merger looks like it is going to happen lol cool find I wonder whether hey hard programed the SMBH r let them evolve naturally based on the article I presume the prior simulation trade offs and all and too many different ways such SMBH seeds could form.
 

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