Apparent horizons in Clifton-Mota-Barrow inhomogeneous universe
Vincenzo Vitagliano, Valerio Faraoni, Thomas P. Sotiriou, Stefano, Liberati
TL;DR
This paper investigates the behavior of apparent horizons in a specific inhomogeneous universe model within Brans-Dicke theory, revealing dynamic horizon creation and merging phenomena.
Contribution
It provides the first detailed analysis of horizon dynamics in Clifton-Mota-Barrow solutions, highlighting novel horizon behaviors in inhomogeneous cosmologies.
Findings
Horizon creation and merging occur in certain parameter regimes.
The study demonstrates complex horizon dynamics in inhomogeneous Brans-Dicke models.
Results contribute to understanding black hole and cosmological horizon interactions.
Abstract
We analyze the apparent horizon dynamics in the inhomogeneous Clifton-Mota-Barrow solution of Brans-Dicke theory. This solution models a central matter configuration embedded in a cosmological background. In certain regions of the parameter space we find solutions exhibiting dynamical creation or merging of two horizons.
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Taxonomy
TopicsCosmology and Gravitation Theories · Black Holes and Theoretical Physics · Galaxies: Formation, Evolution, Phenomena