Dwarf galaxies have a sense of rhythm, claims a new research
Looks like even the galaxies have a sense of rhythm, as a closer look at the dwarf galaxies has revealed that they actually dance around their giant counterparts, in orderly, disc-shaped orbits.
The discovery contradicts with the conventional model that suggests that the smaller galaxies swarm around larger ones. For decades, scientists have been experimenting to predict the movement of these dwarf galaxies and mostly concluded with the answer of somewhat random orbits. However, the recent discovery indicated that it’s not the case.
“Early in 2013 we announced our startling discovery that half of the dwarf galaxies surrounding the Andromeda Galaxy are orbiting it in an immense plane,” said Geraint Lewis, one of the researchers, in a news release.
“This plane is more than a million light years in diameter, but is very thin, with a width of only 300,000 light years. Our Andromeda discovery did not agree with expectations, and we felt compelled to explore if it was true of other galaxies throughout the universe.”
Lewis further explained that the scientists, using the data in the Sloan Digital Sky Survey, studied the properties of various galaxies and discovered as many as dancing dwarves possessing “oppositely directly velocities,” as they move towards the opposite side of the giant galaxies.
He, bewildered with the research results, said that he and his team investigated a notable coherent and coordination motion in every location, as he analysed how exactly the results differ from the accepted conventional theory of galaxies movement.
“Everywhere we looked we saw this strangely coherent coordinated motion of dwarf galaxies. From this we can extrapolate that these circular planes of dancing dwarfs are universal, seen in about 50 percent of galaxies,” said Lewis.
“This is a big problem that contradicts our standard cosmological models. It challenges our understanding of how the universe works including the nature of dark matter.”
The astrophysicist and his team believe the answer to be hidden in unknown physical process related to the flow of gas in the universe, as yet, there isn’t any obvious mechanism guiding the smaller galaxies into narrow planes.
“Throwing out seemingly established laws of physics is unpalatable,” Lewis added, “but if our observations of nature are pointing us in this direction, we have to keep an open mind. That’s what science is all about.”