Light From Black Hole Collisions Detected for First Time

Black holes are known to swirl around each other and then undergo a violent coalescence, and in this process, they send ripples in space and time, a kind of disruption in the space time co-ordinate. But, collision between two black holes, the giants in the space, has not been known to emanate light till now. A recent observation of such a violent collision in the space has been reported to have emitted light for the first time in history of astronomy.

Researchers are of the notion that the black holes may have been in the just right place at the right time, enabling them to observe the flare of light. The research team consisted of scientists from the Graduate Centre CUNY, Zwicky Transient Facility (ZTF) of Caltech, Borough of Manhattan Community College (BMCC) and the American Museum of Natural History (AMNH). The extraordinary event has been named as S190521g. It was first identified by the Laser Interferometer Gravitational Wave Observatory (LIGO) of the National Science Foundation (NSF) along with the European Virgo Detector on May 21, 2019. Thereafter, scientists at ZTF analysed the recordings and found what could be the flare of light emanating from the Black Hole Collisions.

But what could explain the flare of light coming out of the collision of the giants? Professor Ford, co-author of the study and is associated with BMCC and AMNH, said, “At the centre of most galaxies lurks a supermassive black hole. It’s surrounded by a swarm of stars and dead stars, including black holes. These objects swarm like angry bees around the monstrous queen bee at the centre. They can briefly find gravitational partners and pair up but usually lose their partners quickly to the mad dance. But in a supermassive black hole’s disk, the flowing gas converts the mosh pit of the swarm to a classical minuet, organising the black holes so they can pair up.”