Scientists have spent decades trying to uncover what lies behind the curtains of dark matter, which was so named because scientists cannot see it except for its gravitational pull in the form of gravitational waves. This is the only way he was "visible to us." However, a group of scientists used data from the Hubble Space Telescope to test a revolutionary method for detecting dark matter in clusters of galaxies.
Due to the gravitational effect, scientists have concluded that dark matter is about 85% of the universe. A new method for detecting dark matter was obtained by NASA's Hubble Space Telescope, and it uses faint light from rogue stars in clusters of galaxies to detect a mysterious dark material.
The galactic cluster is a place of mass clusters of various galaxies connected by gravity. Our Milky Way, for example, is located in the Laniakia supercluster consisting of hundreds of thousands of galaxies. Galaxies interact with each other inside the cluster, and sometimes their stars can even be torn off and sent floating in the cluster. When the stars wander around the cluster, they can emit a faint light, called “intracluster light,” which captured Hubble.
“We found that very faint light in clusters of galaxies, intracluster light, shows how dark matter is distributed,” said Mirei Montes of the Australian University of New South Wales, a study published in the Royal Astronomical Society Monthly Notifications. ,
Before the new method, astronomers used "gravitational lensing" to see how dark matter is distributed over clusters of galaxies. However, it was too much time and required sharp eyes for details. Therefore, scientists have introduced a new method of detecting dark matter.
The idea was proposed by Montes and co-author of the study Ignacio Trujillo from the Spanish Institute of Astrophysics in Canarias, and it uses only deep-space imagery, which can be provided by Hubble Frontier Fields projects. With it, you can learn about the properties of dark matter in the observed cluster of stars or galaxies.
However, gravitational lensing techniques were crucial for Montes and Trujillo in the discovery of the revolutionary method. Previous research used gravitational lensing to look at six clusters of galaxies to study their dark matter properties. Then Montes and Trujillo used a new method to see the distribution of intracluster light and compared it with previous studies.
Their future research will focus on finding out more about clusters of galaxies, especially those that are larger than the six already studied. The team will also use the extension for the Hubble Frontier Fields project, Beyond Ultra-deep Frontier Fields and Legacy Observation.
If research continues, it will allow the new dark matter detection method to adapt as a new way of observing it.