Astronomers have created model spectra hypercompact star systems in dense star clusters around supermassive black holes. As reported in the Monthly Notices of the Royal Astronomical Society, they will help find those objects in the vicinity of the milky way.
According to modern theories, the center of most galaxies are supermassive black holes with masses from a few hundreds of thousands to billions of solar masses. When two galaxies collide, most of the stars pass by each other, but the two Central black holes merge. The merger gives rise to gravitational waves carrying enormous amounts of energy — it is comparable with the energy of a nuclear bomb weighing several Sun — and if the objects participating in it asymmetric (e.g., have different mass or spin), then the asymmetry will be observed in gravitational radiation.
As a consequence, new black holes will be transferred some angular momentum, and it will be ejected from its own galaxy, and all the luminaries that have been gravity associated with it. That is, according to astronomers, are formed giperkompleksnye star system. Modern theory suggests that in the galactic halo of milky way type must be hundreds of such objects, but yet they could not be found.
David Lena (Davide Lena) of the Netherlands Institute for space research, along with colleagues suggested that pictures hypercompact star systems can be hidden in existing databases such as the catalog of the Gaia telescope, or the Sloan Digital Sky Survey. However, later it turned out that no one has tried to build realistic models of how they will look in directories. To fill this gap, the authors conducted a computer simulation and has created an artificial hypercompact spectra of stellar systems around black holes with a mass of 100 million solar masses. They also identified the expected morphology of objects and their colors in various filters.