On May 13, scientists' theory of the random distribution of small galaxies around the universe should show that at present. However, astronomical observations show that smaller galaxies are often arranged in a disk-shaped plane around the host galaxy, just like Saturn's rings. Researchers are now trying to reconcile the gap between theory and reality. They believe that the distribution of smaller galaxies around the host galaxy may be due to the invisible "wall" formed by an imaginary particle called a symmetry in space.
Lambda CDM, the standard model of big bang cosmology, believes that the universe is composed of three key components: Cosmic constant, cold dark matter and conventional matter. Among them, the cosmological constant is a coefficient used by Einstein to explain his general relativity equation. Cold dark matter is a slow moving particle without radiation. In addition, it is the conventional matter with which people interact every day.
Lambda CDM model believes that smaller galaxies should be captured by the gravity of larger host galaxies, and their orbits are randomly distributed around the latter, but this assumption has not been observed in the real universe.
Two researchers from the University of Nottingham have come up with an explanation. They believe that under the premise of dark matter, there is a "fifth force" in space that may be arranging galaxies into a disk.
According to their theory, a hypothetical particle called a symmetry will form an invisible "barrier" in space, making galaxies arranged in a disk shape.
"Because there is already dark matter and dark energy, we need to introduce new particles into the standard model to make sense," said aneesh Naik, a researcher at the University of Nottingham
"This is the basis for the study of relativistic spatiotemporal symmetry theory. It is a new candidate particle for dark energy and dark matter," he added
The researchers believe that these particles will exist in groups of different polarity States, forming invisible walls in space. These "invisible" walls also allow smaller galaxies to arrange in a disk around larger host galaxies.
If scientists want to prove the existence of "invisible walls" in space, they need to prove the existence of symmetries. Nike and Clare burrage, a physicist at the University of Nottingham, still have a lot of work to do.