Black holes can merge many times in a row
Astrophysicists have theorized that the star clusters in the outskirts of galaxies are continuously merging black holes, which more massive objects.
Gravitational waves that have been registered by the LIGO detector, gave rise to the fusion event, which ended with the evolution of the system of two rotating around each other black holes. Energy is at the confluence of two such objects is allocated, according to the theory of relativity, in the form of gravitational waves — perturbations of space-time so powerful that the sensing interferometers on Earth felt it.
An international team of physicists under the leadership of Charles Rodriguez from MIT suggested that black holes may merge more than once, generating holes more massive than those formed by gravitational collapse of massive stars.
“The merger of the second-generation” needs, according to scientists, occur on the outskirts of galaxies, star clusters, consisting of thousands and sometimes millions of stars.
“We believe that in clusters of a huge number of stars are born a lot of black holes, which gradually — and rather quickly — form a binary system merge into one big black hole, and then the new black holes — merging — find yourself a new pair and merging with it, forming even more massive black holes,” explains Rodriguez.
If LIGO or other gravitational Observatory will register gravitational wave from a black hole, the mass of which exceeds 50 Sunny high chance that this object formed in the cluster with a high density of stars and black holes, said the group Rodriguez. Their calculations, the scientists published in Physical Review Letters, and briefly about them tells on the website of the Massachusetts Institute of technology.