To map used data obtained by the Hubble space telescope.
Astronomers from the US, UK, France, Switzerland and Italy provided the most detailed to date map of the distribution of dark matter in the galaxy clusters. Devoted to a study published in the journal Monthly Notices of the Royal Astronomical Society.
Maps compiled for the clusters of galaxies Abell 2744 (redshift z = 0,308), MACSJ 0416, (z = 0,396) and MACSJ 1149 (z = 0,543). These related forces of gravitation of a star system was used as gravitational lenses (propagating in the vicinity of the light beam is bent), which allowed to determine the distribution of dark matter in the background of the Universe.
The resulting map corresponds exactly to the computer modeling and theoretical predictions of the existence of cold dark-matter model, heavy particles which move slowly compared to the speed of light. To map used data obtained by the Hubble space telescope.
Dark matter accounts for up to 80 percent of the mass of the Universe. The introduction of such a substance can explain the observed motion of galaxies and their clusters. With baryonic matter it interacts through forces of gravity. Currently, the particles constituting dark matter, the unknown. On their role claim, in particular, hypothetical axions, and neutralinos.
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