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Meaning of "apparent horizon" in the English dictionary

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DICTIONARY
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PRONUNCIATION OF APPARENT HORIZON

apparent horizon  [əˈpærənt həˈraɪzən] play
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GRAMMATICAL CATEGORY OF APPARENT HORIZON

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Apparent horizon is a noun.
A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.

WHAT DOES APPARENT HORIZON MEAN IN ENGLISH?

Apparent horizon

In general relativity, an apparent horizon is a surface that is the boundary between light rays that are directed outwards and moving outwards, and those directed outwards but moving inwards. Apparent horizons are not invariant properties of a spacetime. They are observer-dependent, and in particular they are distinct from absolute horizons. See, however, the articles on ergosphere, Cauchy horizon, the Reissner-Nordström solution, photon sphere, Killing horizon and naked singularity; the notion of a horizon in general relativity is subtle, and depends on fine distinctions.

WORDS THAT RHYME WITH APPARENT HORIZON


arisen
əˈrɪzən
bedizen
bɪˈdaɪzən
brazen
ˈbreɪzən
citizen
ˈsɪtɪzən
cloison
ˈklɔɪzən
diapason
ˌdaɪəˈpeɪzən
dizen
ˈdaɪzən
glazen
ˈɡleɪzən
greisen
ˈɡraɪzən
horizon
həˈraɪzən
mizen
ˈmɪzən
mizzen
ˈmɪzən
netizen
ˈnɛtɪzən
orison
ˈɒrɪzən
poison
ˈpɔɪzən
prison
ˈprɪzən
raisin
ˈreɪzən
risen
ˈrɪzən
spiegeleisen
ˈspiːɡəlˌaɪzən
venison
ˈvɛnɪzən

WORDS THAT BEGIN LIKE APPARENT HORIZON

appalto
appanage
appanaged
apparat
apparatchik
apparatus
apparatus criticus
apparel
apparelled
apparelling
apparelment
apparent
apparent magnitude
apparent movement
apparently
apparentness
apparition
apparitional
apparitor
appassionato

WORDS THAT END LIKE APPARENT HORIZON

A horizon
artificial horizon
B horizon
C horizon
celestial horizon
Deepwater Horizon
event horizon
gyro horizon
on the horizon
sensible horizon
visible horizon

Synonyms and antonyms of apparent horizon in the English dictionary of synonyms

SYNONYMS

Translation of «apparent horizon» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF APPARENT HORIZON

Find out the translation of apparent horizon to 25 languages with our English multilingual translator.
The translations of apparent horizon from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «apparent horizon» in English.

Translator English - Chinese

明显的地平线
1,325 millions of speakers

Translator English - Spanish

aparente horizonte
570 millions of speakers

English

apparent horizon
510 millions of speakers

Translator English - Hindi

स्पष्ट क्षितिज
380 millions of speakers
ar

Translator English - Arabic

أفق واضح
280 millions of speakers

Translator English - Russian

очевидно горизонт
278 millions of speakers

Translator English - Portuguese

aparente horizonte
270 millions of speakers

Translator English - Bengali

আপাত দিগন্ত
260 millions of speakers

Translator English - French

horizon apparent
220 millions of speakers

Translator English - Malay

Ufuk yang jelas
190 millions of speakers

Translator English - German

scheinbaren Horizont
180 millions of speakers

Translator English - Japanese

見かけの地平線
130 millions of speakers

Translator English - Korean

명백한 수평선
85 millions of speakers

Translator English - Javanese

Tliti sing jelas
85 millions of speakers
vi

Translator English - Vietnamese

chân trời rõ ràng
80 millions of speakers

Translator English - Tamil

வெளிப்படையான அடிவானம்
75 millions of speakers

Translator English - Marathi

उघड क्षितीज
75 millions of speakers

Translator English - Turkish

Açık ufuk
70 millions of speakers

Translator English - Italian

orizzonte apparente
65 millions of speakers

Translator English - Polish

horyzont pozorny
50 millions of speakers

Translator English - Ukrainian

очевидно горизонт
40 millions of speakers

Translator English - Romanian

orizont aparent
30 millions of speakers
el

Translator English - Greek

φαινομενική ορίζοντα
15 millions of speakers
af

Translator English - Afrikaans

skynbare horison
14 millions of speakers
sv

Translator English - Swedish

skenbar horisont
10 millions of speakers
no

Translator English - Norwegian

tilsynelatende horisonten
5 millions of speakers

Trends of use of apparent horizon

TRENDS

TENDENCIES OF USE OF THE TERM «APPARENT HORIZON»

The term «apparent horizon» is used very little and occupies the 155.256 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Rarely used
28
/100
The map shown above gives the frequency of use of the term «apparent horizon» in the different countries.
Principal search tendencies and common uses of apparent horizon
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «apparent horizon».

FREQUENCY OF USE OF THE TERM «APPARENT HORIZON» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «apparent horizon» during the past 500 years. Its implementation is based on analysing how often the term «apparent horizon» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about apparent horizon

EXAMPLES

10 ENGLISH BOOKS RELATING TO «APPARENT HORIZON»

Discover the use of apparent horizon in the following bibliographical selection. Books relating to apparent horizon and brief extracts from same to provide context of its use in English literature.
1
Black Hole Physics: Basic Concepts and New Developments
The apparent horizon is defined to be the outermost trapped surface. It can be computed on any given Cauchy surface E , which gives a slice of spacetime. This makes the apparent horizon extremely convenient for numerical computations.
V. Frolov, Igorʹ Dmitrievich Novikov, 1998
2
Frontiers in Numerical Relativity
Each black hole will have an apparent horizon in J on the bridge. At or very near this surface the boundary conditions for the steady state equations are specified. The two dimensional surface on which we specify the boundary conditions we ...
Charles Ross Evans, Lee Samuel Finn, David W. Hobill, 1989
3
Physics of Black Holes: A Guided Tour
Note that as the area of the apparent horizon increases, so does the excised region, which is allowed to grow accordingly. This can be appreciated by comparing the areas filled with squares in the lower panel of Fig. 5.2 (referring to t = 0.67 ...
Eleftherios Papantonopoulos, 2009
4
Black Holes and Relativistic Stars
In some cases, an apparent horizon signals the existence of a black hole. An apparent horizon is also determined by the fate of beams of light, but in this case it is the instantaneous fate of the rays that counts. In a weak gravitational field about ...
Robert M. Wald, 1998
5
Black Holes
must be contained in B(r) and the apparent horizon must lie behind or coincide with the event horizon. The apparent horizon 37"(r) will be a marginally trapped surface. That is, it is a spacelike 2-surface such that the convergence p of the ...
C. DeWitt, Bryce Seligman DeWitt, 1973
6
Glossary of Mapping Science
at the observer intersects the celestial sphere is practically equivalent. horizon, false - A line resembling the apparent horizon but lying just above or below it. horizon, geocentric - A plane through the center of the Earth and parallel to the ...
American Society of Civil Engineers, 1994
7
A Relativist's Toolkit: The Mathematics of Black-Hole Mechanics
I II III IV r = therefore changes sign at r = 2M, and in this context, this surface is called an apparent horizon. (A similar calculation would reveal that for ingoing light rays, the expansion is negative everywhere in regions I and II.) To give a proper ...
Eric Poisson, 2004
8
Topics in Numerical Relativity: Solving the Initial Value ...
An apparent horizon is guaranteed to be on or within the event horizon, so it is physically appropriate to use the apparent horizon as an excision boundary. There is a third, less discussed use for an apparent horizon finder, and that is to probe ...
Lisa L. Lowe, 2008
9
Black Holes: An Introduction
In general we have to distinguish the following: the infinite redshift surface, the event horizon and the apparent horizon. 2.15.1 The infinite redshift surface The surface defined by g00 = 0 has an infinite redshift to an external observer.
Derek J. Raine, Edwin George Thomas, 2010
10
Hawking on the Big Bang and Black Holes
I shall call the boundary dT(r) of T(T), the apparent horizon in the surface 5(r). In the last section it was shown that trapped or marginally trapped surfaces cannot intersect J~(I+). Thus T(r) must be contained in B(r) and the apparent horizon must ...
Stephen W. Hawking, 1993

10 NEWS ITEMS WHICH INCLUDE THE TERM «APPARENT HORIZON»

Find out what the national and international press are talking about and how the term apparent horizon is used in the context of the following news items.
1
Review: Public Domain's meaning not apparent in “Apparent
Apparent Horizon: Deep Time, Surveillance, and De/Reconstitution of the Human Subject, mashes the topics in the title and more in the ... «ArtsATL, Jun 15»
2
An Earthling's Guide to Black Holes
Instead, Dr. Hawking's “apparent horizon” would be like a purgatory for light rays attempting to escape a black hole, slowly dissolving and ... «New York Times, Jun 15»
3
Jonathan Franzen talks up, and around, his new novel
art: PD Closing the Apparent Horizon · @Eyedrum Art and Music Gallery · Sat. 7/4 6pm · More Info · Add Event · See More ... «Atlanta Journal Constitution, Jun 15»
4
Erik Larson details 'The Last Crossing of the Lusitania' in 'Dead Wake'
By. art: PD Closing the Apparent Horizon · @Eyedrum Art and Music Gallery · Sat. 7/4 6pm · More Info · Summer Puppet Series Workshops. «Atlanta Journal Constitution, Mar 15»
5
Earl Pardon's 'Portable Art' has its day at the High Museum
By. art: PD Closing the Apparent Horizon · @Eyedrum Art and Music Gallery · Sat. 7/4 6pm · More Info · Summer Puppet Series Workshops. «Atlanta Journal Constitution, Feb 15»
6
7 Bond films that could feature Cambridge's Prof Stephen Hawking
The way the information gets out seems to be that a true event horizon never forms, just an apparent horizon.” Hawking is marked down for ... «Cambridge News, Dec 14»
7
A Year of Santa Barbara Sunsets
Officially, let's call sunset the moment when the upper limb of the Sun dips below your apparent horizon, if the horizon were flat and you were at ... «Santa Barbara Edhat, Dec 14»
8
Decoding Interstellar
The theory has been re-written recently stating that, stuffs/things/data will not be vanished and gets stored in a place called 'Apparent Horizon'. «IndiaGlitz, Nov 14»
9
Black Holes are Actually "Eternally Collapsing Objects" --Indian …
Hawking's latest paper attempts to resolve the Firewall Paradox by proposing that gravitational collapse produces only an Apparent Horizon but ... «The Daily Galaxy, Nov 14»
10
The Big Bang may not have happened (and there are no black holes)
... from which no light can escape, there is an 'apparent horizon', behind which very complicated things happen involving quantum physics. «Metro, Sep 14»

REFERENCE
« EDUCALINGO. Apparent horizon [online]. Available <https://educalingo.com/en/dic-en/apparent-horizon>. Apr 2024 ».
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