Results 21 to 30 of about 62,947 (343)
Gravitational Radiation from a Naked Singularity -- Odd-Parity Perturbation -- [PDF]
, 1999 It has been suggested that a naked singularity may be a good candidate for a strong gravitational wave burster. The naked singularity occurs in the generic collapse of an inhomogeneous dust ball.
Chandrasekhar +4 more
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Gravitational Waves around a Naked Singularity -- Odd-Parity Perturbation of Lemaitre-Tolman-Bondi Space-Time -- [PDF]
, 1998 The motion of a spherical dust cloud is described by the Lemaitre-Tolman-Bondi solution and is completely specified by initial values of distributions of the rest mass density and specific energy of the dust fluid.
A. Ori +32 more
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Exact gravitational plane waves and two-dimensional gravity
Physics Letters B, 2018 We discuss dynamical aspects of gravitational plane waves in Einstein theory with massless scalar fields. The general analytic solution describes colliding gravitational waves with constant polarization, which interact with scalar waves and, for generic ...
Jorge G. Russo
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Quantum evaporation of a naked singularity [PDF]
, 2005 We investigate here quantum effects in gravitational collapse of a scalar field model which classically leads to a naked singularity. We show that non-perturbative semi-classical modifications near the singularity, based on loop quantum gravity, give ...
A. Ashtekar +8 more
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Light trajectory and shadow shape in the rotating naked singularity
European Physical Journal C: Particles and Fields, 2022 In this paper, we investigate the light trajectories and shadow properties in the rotating version of null naked singularity (NNS) spacetime which is derived using the Newman–Janis algorithm without complexification method.
Vishva Patel +4 more
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Physical Processes in Naked Singularity Formation [PDF]
, 2002 Gravitational collapse is one of the most fruitful subjects in gravitational physics. It is well known that singularity formation is inevitable in complete gravitational collapse. It was conjectured that such a singularity should be hidden by horizons if
Chandrasekhar +7 more
core +3 more sources
Nature of Singularities in Gravitational Collapse [PDF]
Progress of Theoretical Physics Supplement, 1999 We discuss several aspects of cosmic censorship hypothesis. There is evidence both in favor and against the hypothesis. On one hand one can prove that cosmic censorship holds in several special cases and on the other hand there is a number of special solutions of Einstein equations in which it is violated.
openaire +2 more sources
Gravitational lensing by rotating naked singularities [PDF]
Physical Review D, 2008 35 pages, 30 ...
Gyulchev, Galin N. +1 more
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Leading singularities and classical gravitational scattering [PDF]
Journal of High Energy Physics, 2020 Abstract In this work we propose to use leading singularities to obtain the classical pieces of amplitudes of two massive particles whose only interaction is gravitational. Leading singularities are generalizations of unitarity cuts.
Cachazo, Freddy, Guevara, Alfredo
openaire +4 more sources
Quantum backreaction on chronology horizons
Journal of High Energy Physics, 2022 We extend in two directions our recent investigation of strongly interacting quantum fields in a class of spacetimes with chronology horizons (Misner spacetimes).
Roberto Emparan, Marija Tomašević
doaj +1 more source