US scientists have gathered new data on black holes collision, after they have seen two such black holes circulating near the Virgo constellation and they are a lot closer to colliding than it was formerly believed. A disaster of cosmic scale will happen when the black holes hit each other in full force, but this will occur 100,000 years from now.
In a new research, astrophysicists discovered that a couple of super massive black holes closely revolving around each other in the Virgo constellation extremely close, at less than one light week distance. In the case of a galactic crash, a wave of gravitational forces would get through the space-time fabric itself. These black holes, found at more than 3 billion light-years from Earth, provide researchers a deeper understanding of the development of our galaxy and of the universe.
A super massive black hole is situated in the middle of the majority of galaxies, including in the center of our Milky Way. These black holes are getting larger over time and reach enormous sizes, millions of times bigger than our Sun, while absorbing matter and energy from stars, galaxies and other black holes.
This time it is the nearest situation when scientists have come to monitoring a pair of black holes before getting into a space collision. Watching such a large process achieve its end result will tell them if black holes and other space objects are developing at the same pace, and eventually analyze an essential feature of space-time: its capability to bring oscillations known as gravitational waves, created in the last and most aggressive level of the black holes merging.
These black holes were originally found last year through the lights produced by quasars that are generated by the holes as they eliminate the dust and gas around them. Generally, quasars light up occasionally and when a couple of black holes are close to colliding into each other, the quasars lighten up with regular duration. These specific quasars were seen to get brighter by 15% every 5 years, and all data found until now is in accordance with Einstein’s theories from decades ago.
The astronomers considered if they were able to create a design that describes the duplicating signals of the quasars. They suggested that light waves emitted by quasars are from the rings made of gas usually found around smaller sized black holes.
Their analysis concluded that black holes along with their gassy disks move at very high speed and the light waves produced by the disks that is arriving at us benefit from Doppler boost, or the so-called relativistic effect, which increases the light at every 5 years.
Image source: Alma-Intweb