The Subaru Telescope, located on an island in the US state of Hawaii and operated by Japan, was able to capture the terminal ends of galactic filaments formed by dark matter. The image was taken from the Coma galaxy cluster, which is millions of light years across, and is the first time that a network of galactic filaments covering the entire universe has been discovered.
Unlike stars, planets and celestial bodies, where mass is bent into a spherical shape due to the force of gravity, dark matter, which makes up the largest percentage of the universe, exists as a network of stretched thin filaments. Over vast distances. This network resembles a spider's web, as its thin threads cannot be easily seen, which usually leads scientists to make their conclusions and assumptions about the network based on the size of the galaxies and the gases suspended in it. Does.
A team of researchers from Yonsei University in Korea used the Subaru telescope to search for direct signals of dark matter filaments in the Coma galaxy cluster, located 321 million light years away in the Coma constellation. Their research paper, titled “Detecting weak lensing techniques of galactic filaments within the Coma Galaxy Cluster”, was published in the journal Nature Astronomy earlier this year.
The Coma Galaxy Cluster is one of the largest and nearest galaxy clusters, making it a prime location to search for any signs or signals of dark matter. Because the Coma Cluster is relatively closely spaced, it is difficult to observe it in its entirety. To overcome this problem, the Subaru Telescope Lens provided a solution that combines high sensitivity and accuracy with a wide field of view. By analyzing the data, the team can determine the ends of these invisible threads.
Today's cosmological hypotheses, accepted by the scientific community, predict that galaxy clusters grow at the intersection of dark matter, which makes up about 85% of the universe, and exists as networks spanning millions of light-years. Is. This hypothesis is supported by what has been observed over the years regarding the distribution of galaxies in the universe. In searches for direct evidence of dark matter, galactic filaments can be accessed and analyzed.
This is the first time a scientific team has detected galactic filaments, giving us new evidence about the shape of the dark matter that makes up most of the universe.