Results 31 to 40 of about 51,175 (198)

Solutions of the Oppenheimer--Volkoff Equations Inside 9/8$^{ths}$ of the Schwarzschild Radius [PDF]

open access: yesCommunications in Mathematical Physics, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Smoller, Joel A., Temple, Blake
openaire   +2 more sources

Spontaneously vectorized Einstein-Gauss-Bonnet black holes

open access: yesPhysics Letters B, 2021
We construct spontaneously vectorized black holes where a real vector field is coupled to the Gauss-Bonnet invariant. We employ three coupling functions for the vector field, and determine the respective domains of existence of the vectorized black holes.
Simon Barton   +3 more
doaj   +1 more source

Sub-Planckian black holes and the Generalized Uncertainty Principle [PDF]

open access: yes, 2015
The Black Hole Uncertainty Principle correspondence suggests that there could exist black holes with mass beneath the Planck scale but radius of order the Compton scale rather than Schwarzschild scale.
A Ashtekar   +78 more
core   +3 more sources

A hypercontinuous hypersmooth Schwarzschild line element transformation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
In this paper, a new derivation for one of the black hole line elements is given since the basic derivation for this line element is flawed mathematically. This derivation postulates a transformation procedure that utilizes a transformation function that
Robert A. Herrmann
doaj   +1 more source

Stability and dynamics of scalar field thin-shell for renormalization group improved Schwarzschild black holes

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
In this paper, our main concern is to obtain the geometrical structure of a thin-shell through the match of inner flat and outer the renormalization group improved Schwarzschild black hole through a well-known cut and paste approach.
Faisal Javed
doaj   +1 more source

On the Schwarzschild Solution: a Review [PDF]

open access: yes, 2017
In this paper the well-known Schwarzschild Solution is discussed. In the first section, by resorting, as usual, to the Einstein Field Equations, a short summary of the conventional derivation is provided.
Cataldo, C. (Carmine)
core   +1 more source

The Connection Between Entropy and the Absorption Spectra of Schwarzschild Black Holes for Light and Massless Scalar Fields

open access: yesEntropy, 2009
We present heuristic arguments suggesting that if EM waves with wavelengths somewhat larger than the Schwarzschild radius of a black hole were fully absorbed by it, the second law of thermodynamics would be violated, under the Bekenstein interpretation ...
Sergio Mendoza   +4 more
doaj   +1 more source

Probing global aspects of a geometry by the self-force on a charge: Spherical thin-shell wormholes [PDF]

open access: yes, 2013
The self-interaction for a static point charge in the space-time of a thin-shell wormhole constructed connecting two identical Schwarzschild geometries is calculated in a series expansion. The electrostatic self-force is evaluated numerically.
de Celis, E. Rubín   +2 more
core   +3 more sources

Shadow of a Schwarzschild black hole surrounded by a Bach–Weyl ring

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We have studied the shadows of a Schwarzschild black hole surrounded by a Bach–Weyl ring through the backward ray-tracing method. The presence of Bach–Weyl ring leads to that the photon dynamical system is non-integrable and then chaos would appear in ...
Mingzhi Wang   +3 more
doaj   +1 more source

Resonant scattering of light in a near-black-hole metric

open access: yes, 2013
We show that low-energy photon scattering from a body with radius R slightly larger than its Schwarzschild radius r_s resembles black-hole absorption.
Berengut, J. C.   +3 more
core   +1 more source

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