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Strong gravitational lensing across dilaton anti-de Sitter black hole
anti de Sitter gravitational lensing black holes
2010/3/18
In this work we investigate gravitational lensing effect in strong field region around a dilaton black holes in an anti de Sitter (ADS) space. We also analyse the dependence of the radius of the photo...
Using the Wald's relation between the Noether charge of diffeomorphisms and the entropy for a generic spacetime possessing a bifurcation surface, we introduce a method to obtain a family of higher ord...
Regularization parameters for the self-force of a scalar particle in a general orbit about a Schwarzschild black hole
scalar particle Schwarzschild black hole
2010/3/18
The interaction of a charged particle with its own field results in the "self-force" on the particle, which includes but is more general than the radiation reaction force. In the vicinity of the parti...
Spherical Symmetric Solution in f(R) Model Around Charged Black Hole
f(R)Gravity Modified gravity Spherical Symmetry
2010/3/18
A static, asymptotically flat, spherically symmetric solutions is investigated in f(R) theories of gravity for a charged black hole. We have studied the weak field limit of f(R) gravity for the some f...
Advances in Simulations of Generic Black-Hole Binaries
Black-Hole Binaries hybrid post-Newtonian
2010/3/18
We review some of the recent dramatic developments in the fully nonlinear simulation of generic, highly-precessing, black-hole binaries, and introduce a new approach for generating hybrid post-Newtoni...
Critical phenomena and information geometry in black hole physics
Critical phenomena black hole physics information geometry
2010/3/17
We discuss the use of information geometry in black hole physics and present the outcomes. The type of information geometry we utilize in this approach is the thermodynamic (Ruppeiner) geometry define...
Supermassive black hole struggles to swallow Milky Way（图）
Supermassive black hole Milky Way
2010/1/11
Scientists were already aware that the huge black hole at the centre of our galaxy does not consume large amounts of matter, but it could be an even pickier eater than previously thought. That is acco...
Quantum Black Hole in the Generalized Uncertainty Principle Framework
Quantum Black Hole Uncertainty Principle Framework
2010/3/17
In this paper we study the effects of the Generalized Uncertainty Principle (GUP) on canonical quantum gravity of black holes. Through the use of modified partition function that involves the effects ...
On Particle Collisions in the Gravitational Field of Black Hole
Black holes dark matter Penrose process negative energy
2010/3/17
Elastic and inelastic scattering of particles in the gravitational field of static and rotating black holes is considered. Extraction of energy after the collision is evaluated. This energy is limited...
The entropy and mean separation between energy levels of black hole
mean separation energy levels black hole
2010/3/17
According to the widely accepted statistical interpretation of black hole entropy the mean separation between energy levels of black hole should be exponentially small. But this sharply disagrees with...
Small deformations of extreme Kerr black hole initial data
extreme Kerr black hole Small deformations
2010/3/17
We prove the existence of a family of initial data for Einstein equations which represent small deformations of the extreme Kerr black hole initial data. The data in this family have the same asymptot...
Gravitational instability of the inner static region of a Reissner-Nordstrom black hole
Gravitational instability black hole inner static region
2010/3/17
Reissner--Nordstr\"om black holes have two static regions: $r > \ro$ and $0 < r < \ri$, where $0 < \ri < \ro$ are the inner and outer horizon radii. The stability of the exterior static region has bee...
GUP and Higher Dimensional Reissner-Nordström Black Hole Radiation
Generalized uncertainty principle Higher dimensional R-N black hole Black hole radiation
2010/7/8
Based on the generalized uncertainty principle (GUP), in which the quantum gravitational effects are taken in to account, the corrected Beckenstein-Hawking entropy of the higher dimensional Reissner-N...
Non-thermal Hawking radiation from the Kerr black hole
black hole Hawking radiation Damour-Ruffini method quantum theory
2009/8/14
We present a short and direct derivation of Hawking radiation by using the Damour-Ruffini method, as taking into account the self-gravitational interaction from the Kerr black hole. It is found that t...
OJ287: a binary black hole system。