Dark matter, a hypothetical particle believed to make up about 85% of the mass of the universe, has been the subject of various studies for decades. It’s called that because it doesn’t interact with light. The first indication of its existence appeared in the 1970s.
Around this time, astronomer Vera Rubin realized that galaxies would fall apart without an additional source of gravity. This hidden force would be caused by dark matter (or dark matter). Unfortunately, scientists do not yet know the true composition of the latter. However, if one wants to believe in a new theory, it could turn into normal matter through gravitational portals.
One of the consequences of random gravitational interactions
The theory in question is suggested by scientists at the China Key Laboratory of Particle Astrophysics, in this case Sun Xu-Dong and Dai Ben-Zhong. It comes from observations in the center of the Milky Way, which is an impressive source of gamma rays. In their study, which was published in the open archive of preprints arXiv, the researchers refer to “gravitational portals” that can convert dark matter into visible matter. According to this new theory, dark matter particles sometimes annihilate due to random gravitational interactions.
The center of the galaxies, a hub for gravitational portals?
This type of interaction is better known in the technical jargon of physics as “gravitational portals”. Indeed, thanks to gravity alone, the particles can collide and create high-energy electrons.
These hypothetical gravitational portals are mainly located in the center of galaxies. Photo credit: Shutterstock / By andrey_l
These gravitational portals are said to be located primarily in the center of galaxies, where the amount of dark matter is believed to be the most abundant. The high-energy electrons would then move and could in turn collide with low-energy photons and generate gamma rays.
Research awaits review
The fact that the study was published in arXiv means that it has not yet been peer reviewed. In other words, this theory of dark matter and “gravity portals” has yet to be fully revised before it can (or cannot) be accepted by the scientific community.
In any case, this is interesting work as it is based on the current understanding of the various forces present in the cosmos that can destroy, transform and create particles. For example, nuclear power can convert a proton into a neutron and cause radioactive decay. The particle and its antiparticle can also interact and then transform into a flow of energy.