In the new study, published in the journal “Nature Astronomy”, a group of astrophysicians led by Tilla The Savaly from the University of Darem introduced the results of computer modeling, showing that the Milky Way is an unusual object in a structure called a superhalactic plane.
The superhalactic plane is a huge structure in the Universe, extending for billions of light years and containing numerous galaxies.
Unlike most galaxies in the superhalactic plane, which exist in disorganized elliptical formations, the Milky Way possesses an orderly disc and elegant spiral sleeves. Scientists attribute this unique structure to the high density of galaxies in this region, resulting in frequent collisions and mergers.
The study also highlights that our galaxy is situated on the periphery of the virgo-supervision, allowing it to evade major collisions and preserve its structure. However, astrophysicists predict that in approximately 5 billion years, the Milky Way will encounter the Andromeda galaxy, leading to the formation of a new elliptical galaxy.
Savaly and colleagues also discuss the role of dark matter in the formation of such large-scale structures like the superhalactic plane. Depending on the properties of dark matter, particularly its “temperature”, the merger of galaxies and the formation of cosmic structures can vary. These findings support the prevailing theory of “cold dark matter” among physicists.
Hence, this study not only unveils the unique position of the Milky Way in the Universe but also offers a significant contribution to understanding the role of dark matter in the evolution of cosmic structures.