Scientists have discovered the location of the mysterious dark matter


20/02/2012

Researchers from the University of Tokyo and Nagoya using computer models and information of recent observations of gravitational lenses have finally discovered where the "hidden" dark matter. It turns out that dark matter is distributed in the space between the galaxies.

This study showed that the galaxies are no clear "boundaries". Instead, on the outskirts of galaxies are long patches of dark matter, reaching the neighboring galaxies. Intergalactic space is not empty, but filled with dark matter.

It is established that the universe is filled with an invisible substance called "dark matter." The share of dark matter accounts for 22 percent of the current universe, while the share of ordinary matter only 4.5 percent.

In accordance with the general theory of relativity, the light passing near a massive object such as a galaxy, bent under the influence of the so-called "gravitational lens".

In 2010, scientists used 24 million images of galaxies obtained in the course of the project Sloan Digital Sky Survey to determine the location and distribution of dark matter in terms of bending light around galaxies. As a result, they determined the concentration distribution of matter at a distance of hundreds of millions of light-years away from the centers of galaxies.

Created on the basis of this information, the computer models have shown that dark matter extends beyond the concentration of stars. Dark matter galaxies may go into intergalactic space, whereas luminous components such as stars, are within the limited boundaries of the region. The mystery haunt the minds of scientists for a long time, resolved by this study. In the universe there is no void. Intergalactic space is filled with dark matter.

Original: Physorg


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