)
Scientists confirm that black holes are hairless and ring like a bell, gravitationally speaking, when they're born
FirstpostIf there’s one legacy of Albert Einstein that never ceases to make headlines, it’s his Theory of General Relativity. Black holes are one of the biggest enigmas in astrophysics, so it’s no surprise that new discoveries about black holes have also reaffirmed or challenged Einstein’s 103-year-old General Relativity theory. A black hole resulting from such a cosmically-quaking collision should itself “ring” in the aftermath, according to Einstein’s theory, producing gravitational waves like a temple bell or tuning fork would reverberate sound waves. In a new study, the characteristic tones that fade away as the black hole grows less “agitated” have been measured, and the findings appear to validate Einstein’s general relativity theory. According to the hilariously-dubbed “no-hair theorem”, all black hole math, using its gravitation and electromagnetism in general relativity, can be fully-characterised using just three visible parameters — mass, electric charge, and angular momentum.
History of this topic
Scientists have finally 'heard' the chorus of gravitational waves that ripple through the universe
The IndependentScientists have finally ‘heard’ the chorus of gravitational waves that ripple through the universe
Associated Press
Physicists create new model of ringing black holes formed due to their collisions
Hindustan Times)
Stephen Hawking’s Theory Was Right. New Study Confirms Black Holes Do Not Shrink Over Time
News 18Gravitational waves detected for first time from newly born black hole: Study
The Hindu
'Ringing' of black hole detected for first time, confirms Einstein's theory of relativity
India TodayDiscover Related
)
