Binary Black Holes found ECHOING in our Milky Way galaxy! That too 8!
Binary Black Holes have been discovered in our Milky Way Galaxy echoing, all of which were discovered using a new automated tool.
Scientists have just discovered eight binary blackholes in our Milky Way galaxy! Researchers at MIT have found eight new black hole binaries echoing in our Milky Way galaxy using an automated tool called Reverberation machine. The reach was done in collaboration with NASA and looked for echoing black hole binary systems across the sky. The group had originally picked up 26 black hole X-ray binary system for the study, of which 10 systems were close enough and bright to be discernible.
“The role of black holes in galaxy evolution is an outstanding question in modern astrophysics,” says Erin Kara, assistant professor of physics at MIT. “Interestingly, these black hole binaries appear to be ‘mini' supermassive black holes, and so by understanding the outbursts in these small, nearby systems, we can understand how similar outbursts in supermassive black holes affect the galaxies in which they reside,” she added.
Eight new Black Hole echoes discovered
For the study, the Reverberation Machine, which is an automated search tool, was tasked to comb through satellite data signs of black hole echoes. Echoes around black holes are essentially remnants of an orbiting star giving off bursts of X-ray lights and inspiraling gas, illuminating the black hole's extreme surroundings.
The MIT astronomers are now looking for flashes and echoes from nearby black hole X-ray binary systems. Binary systems contain a star orbiting, and occasionally being eaten away by a black hole. They are analysing the echoes from such binary systems to reconstruct a black hole's immediate, extreme vicinity.
“Across all systems, they observed that a black hole first undergoes a “hard” state, whipping up a corona of high-energy photons along with a jet of relativistic particles that is launched away at close to the speed of light. The researchers discovered that at a certain point, the black hole gives off one final, high-energy flash, before transitioning to a “soft,” low-energy state,” says the MIT report.
The final flash may indicate that the black hole's corona briefly expands, ejecting a final burst of high-energy particles before disappearing entirely. “These findings could help to explain how larger, supermassive black holes at the center of a galaxy can eject particles across vastly cosmic scales to shape a galaxy's formation,” says the report.
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