Since the 70s, astrophysicists have known that lonely galaxies tend to have a spiral shape, and
The variety of shapes of galaxies formed from a spiral in different conditions. Image: ICRAR
Computer simulation showed dependencebetween the density of galaxies in a cluster and their morphology (shape). The spiral arms of galaxies are very fragile, and as the density in clusters increases, spiral galaxies begin to lose their gas, scientists say. As a result of this transformation, they lose their spiral arms and become ellipsoids.
The EAGLE neural network algorithm was trained onlarge dataset and is constantly “evolving,” the scientists note. This model is one of the largest cosmological hydrodynamic simulations, using data from 7 billion particles to simulate physical processes.
Evolution of galaxy shapes. Video: ICRAR
The authors of the study note that trainedthe algorithm classifies almost 20,000 galaxies per minute. To complete the work, which took several weeks for astrophysicists, AI takes one hour. A large amount of collected and classified data greatly improves scientists' understanding of the evolution of the universe.
Astrophysicists believe that in recent years, many scientists have explained certain aspects of the change in galaxies, but for the first time they managed to combine disparate data into a single system.
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