Hawking radiation

a. explains how stars gravitationally collapse to form black holes.
b. causes the short lives of black holes.
c. is due to one particle from particle-antiparticle pairs.
d. explains the accretion disks around black holes.
e. provides for an event horizon.


c.
By applying quantum mechanics to black holes, Hawking was able to predict that random quantum fluctuations would create particle-antiparticle pairs that would annihilate almost immediately. Unless, of course, one half of that pair crossed the event horizon of a black hole and the other went the other direction. In this way, the black hole would slowly lose energy because of the radiation it emits.

Physics & Space Science

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