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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 ...
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 ...
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 ...
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 ...
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «APPARENT HORIZON»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
apparent horizon w wiadomościach.
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, Cze 15»
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, Cze 15»
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, Cze 15»
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»
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, Lut 15»
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, Gru 14»
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, Gru 14»
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, Lis 14»
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, Lis 14»
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, Wrz 14»
