Critical phenomena in gravitational collapse
C Gundlach, JM Martin-Garcia - Living Reviews in Relativity, 2007 - Springer
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. Universality …
general relativity shows both surprising structure and surprising simplicity. Universality …
Critical phenomena in gravitational collapse
C Gundlach - Physics Reports, 2003 - Elsevier
In general relativity black holes can be formed from regular initial data that do not contain a
black hole already. The space of regular initial data for general relativity therefore splits …
black hole already. The space of regular initial data for general relativity therefore splits …
Can we distinguish black holes from naked singularities by the images of their accretion disks?
R Shaikh, PS Joshi - Journal of Cosmology and Astroparticle …, 2019 - iopscience.iop.org
We study here images of thin accretion disks around black holes and two classes of naked
singularity spacetimes and compare these scenarios. The naked singularity models which …
singularity spacetimes and compare these scenarios. The naked singularity models which …
Timelike geodesics in naked singularity and black hole spacetimes
In this paper, we derive the solutions of orbit equations for a class of naked singularity
spacetimes and compare these with timelike orbits, that is, particle trajectories in the …
spacetimes and compare these with timelike orbits, that is, particle trajectories in the …
Final fate of spherically symmetric gravitational collapse of a dust cloud<? format?> in Einstein-Gauss-Bonnet gravity
H Maeda - Physical Review D—Particles, Fields, Gravitation, and …, 2006 - APS
We give a model of the higher-dimensional spherically symmetric gravitational collapse of a
dust cloud including the perturbative effects of quantum gravity. The n (≥ 5)-dimensional …
dust cloud including the perturbative effects of quantum gravity. The n (≥ 5)-dimensional …
Can accretion disk properties observationally distinguish black holes from naked singularities?
Z Kovacs, T Harko - Physical Review D—Particles, Fields, Gravitation, and …, 2010 - APS
Naked singularities are hypothetical astrophysical objects, characterized by a gravitational
singularity without an event horizon. Penrose has proposed a conjecture, according to which …
singularity without an event horizon. Penrose has proposed a conjecture, according to which …
Hypothesis of path integral duality. I. Quantum gravitational corrections to the propagator
T Padmanabhan - Physical Review D, 1998 - APS
The action for a relativistic free particle of mass m receives a contribution− m R (x, y) from a
path of length R (x, y) connecting the events xi and y i. Using this action in a path integral …
path of length R (x, y) connecting the events xi and y i. Using this action in a path integral …
Initial data and the end state of spherically symmetric gravitational collapse
PS Joshi, IH Dwivedi - Classical and Quantum Gravity, 1999 - iopscience.iop.org
Generalizing earlier results on the initial data and the final fate of dust collapse, we study
here the relevance of the initial state of a spherically symmetric matter cloud towards …
here the relevance of the initial state of a spherically symmetric matter cloud towards …
Final fate of the spherically symmetric collapse of a perfect fluid
T Harada - Physical Review D, 1998 - APS
The final fate of the spherically symmetric collapse of a perfect fluid which follows the γ-law
equation of state and adiabatic condition is investigated. Full general relativistic …
equation of state and adiabatic condition is investigated. Full general relativistic …
Comparing thin accretion disk properties of naked singularities and black holes
In the present paper, we study the thermal properties of the geometrically thin accretion
disks surrounding the null naked singularity (NNS) and the first type of Joshi-Malafarina …
disks surrounding the null naked singularity (NNS) and the first type of Joshi-Malafarina …