Clusters of galaxies are the largest objects in our universe. They are a group of hundreds of thousands of galaxies , put together by gravity.

Typically, clusters of galaxies grow in size by merging with other clusters of galaxies. Gravitational forces cause them to gradually approach each other, despite the constant expansion of the universe. Thus, the system, known as "El Gordo", the largest known cluster of galaxies, formed by a collision between two large clusters of galaxies. It was found that during the collision gas present in each of these two clusters, warmed up to very high temperatures, starting glow in the X-ray range.
 

In the X-ray region of the spectrum is a gas cloud resembles a comet, two long tail that stretched between two dense cores of galaxy clusters. This is clearly expressed configuration will allow researchers to establish the relative speed of the collision, which proved to be extremely high (about 2200 km / s), as this takes the speed limit allowed by current theories of dark matter.

These rare, extreme examples of galaxy clusters in the process of collision, challenge the popular belief that the dark matter consists of heavy particles, because so far no one such particle has been recorded directly, despite numerous set of experiments on her quest . Tom Broadhurst believes that "it is therefore important to find a new model that will allow a better understanding of the mysterious dark matter." Broadhurst is an author of the wave model of dark matter, published in the journal Nature Physics last year.

Using the wave model of dark matter, scientists interpret the observed properties of the gas and dark matter galaxy clusters El Gordo «hydrodynamic" A computer system of calculation that takes into account the impact of dark matter, which accounts for most of the mass of clusters of galaxies, and which can be seen in the X-ray region of the spectrum of -this its extremely high temperature (about 100 million Kelvin). Dr. Broadhurst and Dr. Molnar able to get a unique design solution for this clash due to comet-shaped cloud of hot gas and found the location and the masses of the two nuclei of dark matter, which pass through each other at an angle with a relative velocity of about 2200 km / s. This means that the total energy release in this process is greater than any other known process space, except for the big bang.