Scientists have studied new data x-ray Observatory “Chandra” and found a ring of bright x-ray sources in the galaxy, which is located at a distance of 300 million light years from Earth.
According to researchers, it’s either black holes or neutron stars, according to DT.
It is noted that a new image of galaxy AM 0644-741 (AM 0644) clearly visible bright x-ray sources. Astronomers believe that ring of black holes or neutron stars formed when the galaxy collided with another. One of them provoked a ripple in the other – AM 0644. Then these ripples were caused by a ring of gas expanding in the second galaxy, which caused the birth of new stars. The first galaxy, likely located in the lower left part of the image.
Scientists emphasize that most of these stars live on space standards is not very long, about a few million years. After that, these stars run out of fuel and they explode in a supernova, leaving behind black holes or neutron stars.
Some of these stars have a companion star from which they extract the gas. This gas falls onto them, forming a spinning disk and heated by the friction. It is heated to incredible temperatures, produces large amounts of x-ray radiation, which may register Chandra.
Despite the fact that the ring of black holes or neutron stars interesting in itself, the story of AM 0644 does not end there. All registered x-ray sources in this outer ring is bright enough to be classified as ultraslow x-ray sources (ULXs). This class of objects, which produce hundreds and thousands of times more x-radiation than “normal” binary system in which the companion star revolves around the neutron star or black hole. Until recently, most astronomers thought that ULXs, in General, contain black holes of stellar mass and, probably, in some cases, black holes, the average mass (100 solar masses and more). However, this changed when several ultraluminous x-ray sources, including M82 and M51, were neutron stars.