Hawking radiation: Difference between revisions
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{{SeeWikipedia|Hawking radiation}} | {{SeeWikipedia|Hawking radiation}} | ||
In physics, '''Hawking radiation''' (also known as '''Bekenstein-Hawking radiation''') is a thermal radiation with a black body spectrum predicted to be emitted by black holes due to quantum effects. It is named after the physicist [[Wikipedia:Stephen Hawking|Stephen Hawking]] who provided the theoretical argument for its existence in 1974, and sometimes also after the physicist Jacob Bekenstein who predicted that black holes should have a finite, non-zero temperature and entropy.<ref>[[Wikipedia:Hawking radiation|Wikipedia's Article on Hawking radiation]]</ref><ref>[[Wikipedia:Stephen Hawking|Wikipedia' | In physics, '''Hawking radiation''' (also known as '''Bekenstein-Hawking radiation''') is a thermal radiation with a black body spectrum predicted to be emitted by black holes due to quantum effects. It is named after the physicist [[Wikipedia:Stephen Hawking|Stephen Hawking]] who provided the theoretical argument for its existence in 1974, and sometimes also after the physicist Jacob Bekenstein who predicted that black holes should have a finite, non-zero temperature and entropy.<ref>[[Wikipedia:Hawking radiation|Wikipedia's Article on Hawking radiation]]</ref><ref>[[Wikipedia:Stephen Hawking|'''Wikipedia''': ''Stephen Hawking'']]</ref> | ||
Because Hawking radiation allows black holes to lose mass, black holes which lose more matter than they gain through other means are expected to evaporate, shrink, and ultimately vanish. Smaller 'micro' black holes (or MBHs) are currently predicted by theory to be larger net emitters of radiation than larger black holes, and to shrink and evaporate faster. | Because Hawking radiation allows black holes to lose mass, black holes which lose more matter than they gain through other means are expected to evaporate, shrink, and ultimately vanish. Smaller 'micro' black holes (or MBHs) are currently predicted by theory to be larger net emitters of radiation than larger black holes, and to shrink and evaporate faster. | ||
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==In the Halo universe== | ==In the Halo universe== | ||
[[Shaw-Fujikawa Translight Engine|Slipspace drives]] create micro-black holes, which tear open a small hole in the fabric of the universe, allowing a starship to pass through into [[Slipstream space | [[Shaw-Fujikawa Translight Engine|Slipspace drives]] create micro-black holes, which tear open a small hole in the fabric of the universe, allowing a starship to pass through into [[Slipstream space]] for far faster interstellar travel. These micro-black holes quickly evaporate via Hawking radiation.<ref>'''[[Halo: Ghosts of Onyx]]''', ''page 53''</ref> | ||
==List of appearances== | |||
==List of appearances== | |||
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{{Col-2}} | |||
*''[[Halo: Combat Evolved]]'' | |||
*''[[Halo 2]]'' | |||
*''[[Halo 3]]'' | |||
*''[[Halo Wars]]'' | |||
*''[[Halo 3: ODST]]'' | |||
*''[[Halo: Reach]]'' | |||
*''[[Halo: The Fall of Reach]]'' {{1st}} | |||
*''[[Halo: The Flood]]'' | |||
*''[[Halo: First Strike]]'' | |||
*''[[Halo: Ghosts of Onyx]] | |||
*''[[Halo: Contact Harvest]]'' | |||
*''[[Halo: The Cole Protocol]]'' | |||
*''[[Halo: Glasslands]]'' | |||
{{Col-2}} | |||
*''[[Halo: Evolutions - Essential Tales of the Halo Universe]]'' | |||
**''[[Midnight in the Heart of Midlothian]]'' | |||
**''[[Dirt]]'' | |||
**''[[The Impossible Life and the Possible Death of Preston J. Cole]]'' | |||
*''[[The Forerunner Saga]]'' | |||
**''[[Halo: Cryptum]]'' | |||
*''[[Halo Graphic Novel]]'' | |||
*''[[Halo: Blood Line]]'' | |||
*''[[Halo Legends]]'' | |||
**''[[Origins]]'' | |||
**''[[The Package]]'' | |||
**''[[Odd One Out]]'' {{C|Non-canonical appearance}} | |||
*''[[i love bees]]'' | |||
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==Sources== | ==Sources== | ||
<references/> | <references/> | ||
[[Category:Physics]] | [[Category:Physics]] | ||
Revision as of 10:31, January 3, 2012
In physics, Hawking radiation (also known as Bekenstein-Hawking radiation) is a thermal radiation with a black body spectrum predicted to be emitted by black holes due to quantum effects. It is named after the physicist Stephen Hawking who provided the theoretical argument for its existence in 1974, and sometimes also after the physicist Jacob Bekenstein who predicted that black holes should have a finite, non-zero temperature and entropy.[1][2]
Because Hawking radiation allows black holes to lose mass, black holes which lose more matter than they gain through other means are expected to evaporate, shrink, and ultimately vanish. Smaller 'micro' black holes (or MBHs) are currently predicted by theory to be larger net emitters of radiation than larger black holes, and to shrink and evaporate faster.
Hawking's analysis became the first convincing insight into a possible theory of quantum gravity. However, the existence of Hawking radiation has never been observed, nor are there currently viable experimental tests which would allow it to be observed. Hence there is still some theoretical dispute over whether Hawking radiation actually exists.
In the Halo universe
Slipspace drives create micro-black holes, which tear open a small hole in the fabric of the universe, allowing a starship to pass through into Slipstream space for far faster interstellar travel. These micro-black holes quickly evaporate via Hawking radiation.[3]
