|
|
|
|
 | | Dark energy is thought to make up the majority of the universe |
It is predicted that 94% of the universe is made up of dark matter and dark energy but, apart from very light neutrinos, neither have been experimentally confirmed. Projects are currently in progress to find experimental evidence of dark sources. Dr HongSheng Zhao, research leader said: “The search for dark matter particles so far has concentrated on highly energetic particles. If dark matter however, is a twin phenomenon of dark energy, it will not show up at instruments like the LHC, but has been seen over and over again in galaxies by astronomers.” Dr Zhao’s new model considers both dark matter and dark energy as a “dark fluid” like two faces of the same coin. When considering galaxies, dark fluids acts like dark matter but when considering the whole Universe they act like dark energy. Dr Zhao’s theory predicts that the energies of dark matter particles would be so small that the LHC, due to begin experiments later this year, may not be able to detect them at all. Unlike some previous work, Dr Zhao has created a model that agrees with the 3:1 ratio of dark energy to dark matter predicted by cosmologists. The work is published by Astrophysical Journal Letters and Physics Review D.
By Leila Sattary
|
 Printer Friendly version |
| |
Comments on this article | | | |
|
| | |
|
| |
|
|
|
|
|
