Scientists have discovered a rare black hole high-mass (IMBH), remote from Earth 10 million light-years. The discovery of this exotic object will help to reveal the formation mechanisms of supermassive black holes, which still remain unknown. This was reported in an article published in the journal Monthly Notices of the Royal Astronomical Society.
The unusual black hole is in a galaxy Mirage’s Ghost (NGC 404), so named because of the weak light and near visible location on the celestial sphere to the star Worlds. The mass of an object 550 thousand times the mass of the Sun. IMBH occupy an intermediate position between black holes of stellar mass (up to one hundred solar masses) and supermassive black holes, or SMBH (from a million to a billion solar masses). A normal black hole formed by collapse of large stars, however, if the star mass is too large (130-250 solar masses), it ends their life in the form of a pair-instability supernova, which does not leave any residual of the object.
According to one model rather large black holes are formed by the absorption of a large number of substances, but the problem is that the IMBH is quite rare. According to another scenario, supermassive black holes arise from the direct collapse of dense interstellar clouds in the galactic nuclei. It also indicates that SMBH are found in the early Universe after the Big Bang, not enough time has passed that the black hole has time to grow to enormous size.
Researchers have discovered a black hole in Ghost Mirage, watching the movement of the gas around its nucleus through a set of radio telescopes ALMA (Atacama Large Millimeter Array) in Chile. The simulation results showed that the picture corresponds to the presence of a black hole the average weight. According to the findings of scientists, its existence is supported both models of SMBH evolution. She has a mass in the range predicted by models direct collapse, but it actively absorbs interstellar gas.
