A team of scientists from Oxford University may have solved one of the greatest mysteries of modern physics: the problem of dark matter and dark energy in the universe. Phenomenon incredibly incomprehensible to researchers until then, theories have been continually proposed. And the Oxford team may have finally found a solution. Explanations.
An unknown in our understanding of the world
Scientists have long felt that there are more materials in the cosmos than we can observe. It is even an astronomical proportion, since it is thought that 95% of this mass would consist of invisible and unknown materials, called dark energy and dark matter. Intriguing the researchers, a team from Oxford may have pierced this mystery …
This dark matter can not be interpreted with our own existing mathematical model on Earth, known by its technical name LambdaCDM. So how do we know that this matter exists if we can not see it, or even interpret it? It is by deduction, as the gravitational effects of this dark matter have heavy repercussions on the neighboring elements. Thus, the suspicion is widely valid and accepted by all.
The team of researchers has therefore developed a new model, to replace LambdaCDM combining dark matter and dark energy into a single phenomenon: a fluid that has this characteristic of negative mass. Dr. James Farnes, who heads the Oxford e-Research Center team, said, "We now think that dark matter and dark energy can be unified into a fluid that has a negative gravity type." . This new reasoning makes it possible to understand how these missing elements work, and opens a whole section of research for these scientists. The question of finding this 95% of the universe component would then be resolved by including a negativity characteristic.
New research for researchers
However, the idea of a negative matter had been dismissed in the past, because the researchers thought that matter, as the universe expands, would be less dense. Nevertheless, recent research suggests that this may not be the case. Thus, the Oxford team believes that a phenomenon of continuous creation of negative masses could take place.
Farnes' theory also allows us to obtain for the first time a rational explanation of the behavior and function of dark matter halos. For information, the majority of galaxies rotate so fast that they are supposed to tear continuously. However, this is not the case, and as a result, it is considered that a halo, invisible and undetectable according to our current models, has the function of keeping them together. Today, this new research even proposes a simulation thanks to the computer to predict the formation of dark matter halos, just like the observations made with the new radio telescopes. It is thus a field of research to deepen but it would explain a lot of phenomenon.
Originally, it was Albert Einstein who evoked in his theories the dark energy, which he described as a "cosmological constant". He thought it was his biggest mistake, but today we know it's a real phenomenon. In notes dating from 1918, Einstein describes his cosmological constant by explaining that a "modification of the theory is necessary" for the empty space to play the role of gravitating negative masses distributed through interstellar space. In short, it is possible that Einstein himself had predicted a universe filled with negative mass …
Researchers now hope that the theory can be tested with a huge telescope that is under construction and, once completed, will be the largest telescope in the world. But if this theory is true, it could correct LambdaCDM, our current image of the universe, by explaining exactly what dark matter and energy are so problematic for our physics.