Ich kann einfach nicht verstehen, wie es möglich ist, dass zwei Schwarze Löcher, die einen winzigen Bruchteil des gesamten Universums ausmachen, möglicherweise das 10.000-fache der Energie aller Sterne im Universum ausstrahlen könnten. Wie ?
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Etwa 1 Stunde und 6 Minuten
Black Hole Collision Power = 10,000 x All Stars in the Universe !
byu/dunncrew inspace
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Same way a supernova can output more power than the galaxy it is located: those are extremely short duration events compared to the life of stars, and power is unit of energy per unit of time.
There are way more mass/energy in the universe, but those events release a given (obviously lower) energy in a extremely short time.
Thanks to the immense mass and energy of the supermassive blackholes, the gravitational and frictional forces are absolutely ridiculous. Given how much they bend the spacetime the fact that the collision would send out ripples in the spacetime is naturally a logical consequence.
Stars are a very slow burning candles in the universe. Just because of their huge size their energy output is quite big, but the star converts a tiny bit of it’s mass into energy for the whole duration of their life.
Statement is “The power output in gravitational waves; 10000 times higher than all stars in the universe.” Power is energy per unit of time. The Sun produces vastly more energy than a lightning bolt, but a lightning bolt releases its energy in a fraction of a second, making it far more powerful at that instant.
Gravity is weird and honestly not even completely understood due to what happens inside said black holes.
It’s actually after 1:07.
The statement may or may not be correct, because while the power output of a black hole merger can be estimated, the power output of all stars in the universe cannot as the number of stars is not known.
The optical starlight power output of all stars in the observable universe is estimated to be 9 x 10^47 W. The peak power of the first detected black hole merger was calculated to be 3.6 x 10^49 W, i.e.40-50x higher.
The keyword is „peak“. Stable stars, depending on their mass and composition, convert (fuse) a certain amount of a specific element into another element and release a specific amount of energy, usually under 1% of converted mass, as emissions of all types. Stars release about 0.1% of their mass as energy over their entire lifetimes, excluding supernovae.
A black hole collision of stellar mass black holes releases several solar masses worth of energy over a fraction of a second, usually 0.01-0.1s. The peak power output of such a merger is higher than the steady output of the stars in the observable universe. For supermassive black hole mergers, the total energy is vastly larger, but it is released over longer timescales, so the peak power can be comparable or somewhat higher, depending on black hole masses and spins.