Results 111 to 120 of about 51,175 (198)
Sculpting Spacetime: Thin Shells in Wormhole Physics
UniverseIn this work, we employ the Darmois–Israel thin-shell formalism to construct both static and dynamic thin-shell configurations surrounding traversable wormholes.
Francisco S. N. Lobo
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Periodic orbits and quasinormal modes of a black hole surrounded by King dark matter halo
European Physical Journal C: Particles and FieldsWe examine the Hawking radiation sparsity and quasinormal mode (QNM) spectra of a Schwarzschild black hole surrounded by the King dark matter distribution.
Hassan Hassanabadi +4 more
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New black hole solutions in f(P) gravity and their thermodynamic nature
Physics Letters BBlack holes are the fascinating objects in the universe. They represent extreme deformations in spacetime geometry. Here, we construct f(P) gravity and the first example of static-spherically symmetric black hole solution in f(P) gravity and discuss ...
Aniruddha Ghosh, Ujjal Debnath
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Spherically symmetric black hole with king dark matter halo
European Physical Journal C: Particles and FieldsIn this work, we present a new spherically symmetric black hole solution surrounded by a King-type dark matter halo. The construction begins by formulating the spacetime metric corresponding to a pure dark matter distribution, utilizing the established ...
Ahmad Al-Badawi, Faizuddin Ahmed
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The Emergence of the Schwarzschild Radius from Spacetime Rolling (SR) Theory
This article presents a remarkable connection between the Spacetime Rolling (SR) Theory, a novel concept regarding the structure and dynamics of spacetime, and the Schwarzschild Radius (RS), a fundamental concept in General Relativity used to describe black holes.
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Influence of quantum correction on the Schwarzschild black hole polarized image
European Physical Journal C: Particles and FieldsUsing a model of an accretion disk around a Schwarzschild black hole, the analytic estimates for image polarization were derived by Narayan et al. (Astrophys J 102:912, 2021). Recently, the EHT team also obtained polarization images of the Sgr A $$^{*}$$
Sen Guo +4 more
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On the Critical Distance in Rotating Frames and Its Analogies to the Schwarzschild Radius
This paper explores the concept of a critical distance in rotating frames where objects appear to move at the speed of light. Using principles from special relativity and rotational dynamics, we derive a critical distance \(d = \frac{c^2}{2a}\). We discuss the implications of this critical distance, drawing analogies to the Schwarzschild radius of ...
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A robophysical model of spacetime dynamics. [PDF]
Sci Rep, 2023 Li S +6 more
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, 2018 This is a short note on a new way to describe Haug's newly introduced maximum velocity for matter in relation to the Schwarzschild radius. This leads to a probabilistic Schwarzschild radius for elementary particles with mass smaller than the Planck mass.
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Revisiting the Event Horizon: A Classical and Relativistic Reassessment of the Schwarzschild Radius
The Schwarzschild radius is conventionally interpreted as the event horizon of aSchwarzschild black hole, based on the condition that the escape velocity equals thespeed of light. In this work, we identify two fundamental inconsistencies in this interpretation.First, a classical analysis of tangential escape velocity—derived fromthe balance between ...
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