GW231123 Space Event

GW231123 Space Event

A team of astronomers discovered the event, dubbed GW231123, when the Laser Interferometer Gravitational-Wave Observatory (LIGO) — a pair of identical instruments located in Livingston, Louisiana, and Hanford, Washington — detected faint ripples in space-time produced by two black holes slamming into each other.


Where

The violent collision of two massive black holes that spiralled into one another far beyond the distant edge of the Milky Way.

The black holes, each more than 100 times the mass of the sun, began circling each other long ago and finally slammed together to form an even more massive black hole about 10bn light years from Earth.


Impact

“These are the most violent events we can observe in the universe, but when the signals reach Earth, they are the weakest phenomena we can measure,” said Prof Mark Hannam, the head of the Gravity Exploration Institute at Cardiff University. “By the time these ripples wash up on Earth they are tiny.”


When

Evidence for the black hole collision arrived just before 2pm UK time on 23 November 2023.


Mass of Black holes

Analysis of the signal revealed that the colliding black holes were 103 and 137 times the mass of the sun and spinning about 400,000 times faster than Earth, close to the theoretical limit for the objects.

“These are the highest masses of black holes we’ve confidently measured with gravitational waves,” said Hannam, a member of the Ligo scientific collaboration. 


Earlier Black hole merger

Scientists have detected about 300 black hole mergers from the gravitational waves they generate. Until now, the most massive merger known produced a black hole about 140 times the mass of the sun. The latest merger produced a black hole up to 265 times more massive than the sun. 


Laser Interferometer Gravitational-wave Observatory (Ligo)

Before the first gravitational wave detectors were built in the 1990s, scientists could observe the universe only through electromagnetic radiation such as visible light, infrared and radio waves. Gravitational wave observatories provide a new view of the cosmos, allowing researchers to see events that were otherwise hidden from them.

Future of Ligo- Black hole telescope

 “The detectors we have planned for the next 10 to 15 years will be able to see all the black hole mergers in the universe, and maybe some surprises we didn’t expect.”


Compiled by

Ms Naresh kuwar 


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