HAWKING RADIATION
Hawking radiation is black-body radiation that is predicted to be released by black holes, due to quantum effects near the black hole event horizon. It is named after the physicist Stephen Hawking, who provided a theoretical argument for its existence in 1974. Hawking radiation describes hypothetical particles formed by a black hole's boundary. This radiation implies black holes have temperatures that are inversely proportional to their mass.
"The smaller a black hole is, the hotter it should glow".
Although it has never been directly observed, Hawking radiation is a prediction supported by combined models of general relativity and quantum mechanics. It is named after the eminent physicist Stephen Hawking, who, in 1974, published a paper titled Black hole explosions? arguing for its existence. It is the thermal radiation predicted to be spontaneously emitted by black holes. It arises from the steady conversion of quantum vacuum fluctuations into pairs of particles, one of which escaping at infinity while the other is trapped inside the black hole horizon. If shown to be factual, Hawking radiation would mean black holes can emit energy and therefore shrink in size, with the tiniest of these insanely dense objects exploding rapidly in a puff of heat. Hawking radiation reduces the mass and rotational energy of black holes and is therefore also known as black hole evaporation. Because of this,
Ads by Eonads
black holes that do not gain mass through other means are expected to shrink and ultimately vanish. Hawking radiation is an incredibly slow process, where a black hole the mass of our Sun would take 10⁶⁷ years to evaporate; the one at the Milky Way's centre would require 10⁸⁷ years, and the most massive ones in the Universe could take up to 10¹⁰⁰ years.
* PLEASE COMMENT, how the content helped you and what to improve in it.
Ads by Eonads
