Astronomers have recorded "antymaterialnu" latest

The first time astronomers have been able to register to practice the newest type of liquid - the so-called latest, the one that exploded because of the instability of South Africa (Pair-instability Supernova - PISN). Article scientists published in the journal Nature, but it gives a summary of New Scientist.

Usually the latest explosions resulting from the gravitational collapse of a star core, which consists of heavy elements - the fusion products of combustion lights. Thus, depending on the mass of the original object, formed a compact object: a black hole, neutron star or white dwarf. However, if weight is over 140 luminaries of solar, then the inside of high-energy photons collide with the nuclei of elements suggest the formation of electron-positron pairs in large quantities.

At some point the life of a star the process begins to dominate over the latter, resulting in a balance of pressure inside lights broken and it explodes. Thus any kompaktnoh on balance, typical of the lighter "colleagues" after the star is left.

Within the new work of scientists interested in the latest SN 2007bi, incorporated in 2007, in the dwarf galaxy, located 1.6 billion light-years from Earth. Immediately after the latest explosion has attracted scientists for its unusual brightness. Further observations allowed to identify the remains of a star many radioactive isotope nickel 56ni, which is characteristic of PISN.

Scientists stress that candidates for the title of the latest, so that exploded because of the instability of South Africa, were still (eg, SN 2006gy), but their remains were no traces of nickel. Astronomers hope that the new results help to clarify the evolution of the universe in the early stages of its development. It is believed that this latest, similar SN 2007bi, filled the space with heavy elements.

Tags: star scientists