Thursday, 18 October 2018 19:04

Astronomers caught 20 new radio signals from far space

For last year scientists found 20 fast radio splashes. It almost as much how many it is around the world recorded since 2007. []

Fast radio splashes (Fast Radio Bursts or FRB) are short, but very powerful radio signals of unknown origin. For the first time such radio signal was found in 2007: since then astronomers recorded several tens of FRB which invisible sources were scattered on all space. Scientists told about the finds in the Nature magazine.

Scientists cannot still establish the reason and origin of these phenomena. Everything that astrophysicists can tell — their sources are outside the Milky Way — at other edge of the Universe. Formation of such signals requires the huge amount of energy equivalent to decade of "work" of our Sun. Among possible sources of FRB call evaporating the black holes, merging neutron stars and turning into a black hole pulsars.

The Australian Square Kilometre Array Pathfinder telescope, or ASKAP helps to find new radio splashes by the scientist. It is only the first stage of the huge radio interferometer SKA (Square Kilometre Array) which will be started in 6 years. The total area of its antennas, as appears from the name, will be 1 square kilometer. Such sizes will allow to reach sensitivity, by 50 times bigger, than at any other radio telescope.