Results 1 to 10 of about 123,706 (259)

Gravitational Waves from Gravitational Collapse [PDF]

open access: yesLiving Reviews in Relativity, 2011
Gravitational-wave emission from stellar collapse has been studied for nearly four decades. Current state-of-the-art numerical investigations of collapse include those that use progenitors with more realistic angular momentum profiles, properly treat ...
Chris L. Fryer, Kimberly C.B. New
doaj   +11 more sources

Critical Phenomena in Gravitational Collapse [PDF]

open access: yesLiving Reviews in Relativity, 2007
As first discovered by Choptuik, the black hole threshold in the space of initial data for general relativity shows both surprising structure and surprising simplicity.
Martín-García José M.   +1 more
doaj   +8 more sources

ON GRAVITATIONAL COLLAPSE [PDF]

open access: yes, 2017
: Gravitational collapse of diffuse material has been investigated using a new solution of Einstein's equations of general relativity. This replaces the theory of black-hole formation developed for the standard vacuum solution of Schwarzschild.
WAYTE, RICHARD
core   +2 more sources

Anti-deSitter gravitational collapse [PDF]

open access: yesClassical and Quantum Gravity, 2002
We describe a formalism for studying spherically symmetric collapse of the massless scalar field in any spacetime dimension, and for any value of the cosmological constant $\Lambda$.
Birukou, M.   +3 more
core   +5 more sources

Gravitational quantum collapse in dilute systems

open access: yesComptes Rendus. Physique, 2022
Penrose has suggested that large fluctuations of the gravitational energy of quantum systems, resulting from fluctuations of its density in space, may induce a quantum collapse mechanism [1], but he did not propose a precise dynamics for this process. We
Laloë, Franck
doaj   +1 more source

Gravitational Waves from Gravitational Collapse [PDF]

open access: yes, 2002
Gravitational wave emission from the gravitational collapse of massive stars has been studied for more than three decades. Current state of the art numerical investigations of collapse include those that use progenitors with realistic angular momentum ...
A Buonanno   +256 more
core   +3 more sources

Gravitational collapse in Rastall gravity

open access: yesPhysics Letters B, 2019
We study spherically symmetric gravitational collapse of a homogeneous perfect fluid in Rastall gravity. Considering a linear equation of state (EoS) for the fluid profiles, we examine the conditions under which the collapse scenario could end in a ...
A. H. Ziaie, H. Moradpour, S. Ghaffari
doaj   +1 more source

The nature of the naked singularity in generalized Vaidya spacetime and white hole geodesics

open access: yesPhysics of Complex Systems, 2021
This paper gives conditions to the energy-momentum tensor when the gravitational collapse of generalized Vaidya spacetime results in a naked singularity.
Виталий Дмитриевич Вертоградов
doaj   +1 more source

Gravitational Wave Speed: Undefined. Experiments Proposed [PDF]

open access: yesResearch Ideas and Outcomes, 2018
Since changes in all 4 dimensions of spacetime are components of displacement for gravitational waves, a theoretical result is presented that their speed is undefined, and that the Theory of Relativity is not reliable to predict their speed ...
Daniel Russell
doaj   +2 more sources

Gravitational collapse of quantum fields and Choptuik scaling

open access: yesJournal of High Energy Physics, 2022
Gravitational collapse into a black hole has been extensively studied with classical sources. We develop a new formalism to simulate quantum fields forming a black hole.
Benjamin Berczi   +2 more
doaj   +1 more source

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