event horizon
English
Pronunciation
- (General American) IPA(key): /əˈvɛnt həˈɹaɪ.zən/, /-zɪn/, [əˈvɛɾ̃ həˈɹaɪ.zən], [əˈvɛn -], [-zɪn]
Audio (US) (file)
Noun
event horizon (plural event horizons)
- (astrophysics) The gravitational sphere of a black hole within which the escape velocity is greater than the speed of light.
- (by extension) A point of no return.
Coordinate terms
(astrophysics):
Derived terms
- moral event horizon
Related terms
- absolute horizon
- apparent horizon
- Cauchy horizon
- dynamical horizon
- isolated horizon
- Killing horizon
- particle horizon
Translations
gravitational sphere within which light cannot escape
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See also
Further reading
event horizon on Wikipedia.Wikipedia
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