Astronomers have discovered that dwarf galaxies from the Centaurus constellation have an orderly orbit around its center. This defies dark matter cosmology, which states that small galaxies around the Centaurus, Andromeda, and Milky Way constellations move chaotically.
This latest research claims that the studied dwarf galaxies move in an orderly manner. The team of scientists from the University of Basel released its results in an article in the journal Science.
“Centaurus A, the Milky Way, and Andromeda all have highly statistically unlikely satellite systems. This observational evidence suggests that something is wrong with standard cosmological simulations”, researchers claim in the article.
Dark matter theory claims that dwarf galaxies surround big galaxies and have an unusual behavior and chaotic movements.
Oliver Müller, the study author, finds the discovery strange and unexpected. He describes it as being a challenge to how astronomers see galaxy groups.
The Movements of These Dwarf Galaxies Might Be Just a Coincidence
The research studied 16 of the 44 galaxies orbiting in the Centaurus A galaxy. Among them, 14 revealed synchronized movements.
However, there are 44 other dwarf galaxies that still need to be studied. Researchers admit that they might be observing a coincidence. Müller mentioned that the dwarf galaxies only appear to be moving in a disk formation, but that they might actually be moving randomly.
However, other researchers seem to disagree with this latest claim. Bridget Falck of the Institute of Theoretical Astrophysics, University of Oslo, states that it’s premature to say that these galaxies defy standard cosmology. This is because the studied environment is rather isolated.
Müller has also given a brief description as to how the recent data surprised the research team:
“We always think we are special. But the local group is not special.”
The Local Group includes 54 galaxies, the Milky Way and dwarf galaxies among them. Its gravitational center is somewhere between Andromeda and the Milky Way. It is also part of a larger group, called the Virgo Supercluster, which is included in the even more extensive Laniakea Supercluster.
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