A study from the University of Queensland tracked dwarf galaxies to understand whether dairy cow evolution resembles other parts of the universe.
In collaboration with the Australian National University’s Astronomy and Astrophysics Research School, the delegation’s investigation discovered that space dance could become the future of the Milky Way as it tracks courses collisions with nearby dwarfs and spiral galaxies.
“The Milky Way will merge with Andromeda and each small dwarf galaxy over the next 2.5 billion years, and there has been much research into what is happening in local groups, explained Dr. Sarah Sweet of Queensland’s School of Mathematics and Physics.
Spirals and dwarf galaxies combine to form a satellite structure
The team studied two similar spiral galaxies, about 3 billion years ago than Milky Way and Andromeda.
This study showed that these galaxies (NGC5713 and NGC5719) combine as if they were dancing with closely-located dwarf satellites rotating around them.
Without these mergers, the galaxy remains randomly distributed clouds, not located on beautiful, consistent planes like the Milky Way and Andromeda area.
Improved model for galactic evolution
“This may provide us with the clearest appearance for us as to how structures like the Milky Way satellite system are formed and how they evolve,” Sweet said.
“Understanding the future potential of Galaxy will help us improve our models of evolution, dark matter and cosmic structure.
This study shows that the Milky Way is part of a much larger cosmic story, unfolding for more than billions of years, and includes the dance of the dwarf galaxy and the formation of the universe itself.
Comparison of Milky Way and other twin-like systems
Several papers will be published as part of the mandatory investigation to confirm the outcomes of galaxy evolution.
Research paper lead, ANU Professor Helmut Jerjen, said the researchers were comparing our local Galaxy group to systems like other twins.
Professor Jerjen commented: “We will test whether local groups in the Milky Way and Andromeda are poster children or outliers in the universe. Until we know this, our ability to generalize discoveries from local groups of galaxies to understand the evolution of galaxies in the broader cosmological context is hampered.”
There is a persistent tension between observations of local galaxy groups and the world’s most sophisticated cosmological computer simulations, such as the placement of dwarves that are preferentially observed in the satellite plane around the host.
New simulations to reveal the future of the galaxy
New observations from the delegation’s investigation suggest that the current simulation of the spiral galaxies and the d-star galaxies should be overhauled.
Professor Jergen concluded: Will the Milky Way begin their own dance with Andromeda, as the smaller dwarf galaxy is spinning? That’s what we want to know. ”
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