Arecibo Observatory has confirmed the existence of the universe in a new type of super-powerful radio sources

Radio telescope обсерватории Arecibo - the world's largest single use of the aperture. The diameter of its reflector, located in the natural sinkholes, - 304, 8 meters. In April this year, the laboratory staff published observations that confirm the existence of such a phenomenon as short radiovyspyshki (Fast Radio Burst or FRB). For the first time such an outbreak was recorded in 2007 radio telescope Parkes Observatory in Australia. In subsequent years, it was found a few more outbreaks, but all of them were registered in the same radio telescope. Now the existence of FRB received independent confirmation.

Interest astronomers to short radio bursts caused by the fact that they come from very large distances - the order of billions of light-years, which indicates their great brightness. The power of such a flash lasting only about a millisecond, comparable to gamma-ray bursts that accompany the birth of a supernova explosions and black holes. Astronomers speculate that the source of these outbreaks is a previously unknown species of space objects - blitzar . Therefore, confirmation of their existence is of great importance, comparable with the discovery of пульсаров in 1967.

Blitzar a supermassive neutron star whose mass is greater than предел Oppenheimer-Volkoff . From the immediate collapse into a black hole a star makes a tremendous rotation speed - centrifugal forces do not provide substance stars fall through the event horizon.

Blitzar has a very strong magnetic field, which rotates together with the star, "cleans" the surroundings of the matter, and at the same time inhibits the rotation of the star. Sooner or later, the centrifugal forces are reduced so that the star becomes a black hole. Thus there is no gamma-ray burst, since, according to modern ideas it requires to collapsing star was surrounded by аккреционный drive - but around blitzar all matter is already sweeping the magnetic field. At the time of the collapse of the star - the source of the magnetic field - is behind the event horizon, and no longer with the magnetic field to interact. As a result, the magnetic field as if "off" from the star and produces a short but very powerful flash in the radio.

Study of short radio flares may shed new light on the formation of black holes, in addition, radio waves, flying billions of light-years across, are distorted and interact with the intergalactic medium, which may also give new information about the structure of the universe.



Source: habrahabr.ru/post/223237/