Dynamical apparent horizons in inhomogeneous Brans-Dicke universes
arXiv:1205.3945 · doi:10.1103/PhysRevD.86.064040
Abstract
The presence and evolution of apparent horizons in a two-parameter family of spherically symmetric, time-dependent solutions of Brans-Dicke gravity are analyzed. These solutions were introduced to model space- and time-varying gravitational couplings and are supposed to represent central objects embedded in a spatially flat universe. We find that the solutions possess multiple evolving apparent horizons, both black hole horizons covering a central singularity and cosmological ones. It is not uncommon for two of these horizons to merge, leaving behind a naked singularity covered only by a cosmological horizon. Two characteristic limits are also explicitly worked out: the limit where the theory reduces to general relativity and the limit where the solutions become static. The physical relevance of this family of solutions is discussed.
10 pages, 4 figures; v2: minor changes to match published version
References in corpus (93)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- f(R) Theories Of Gravity
- f(R) theories
- Introduction to Modified Gravity and Gravitational Alternative for Dark Energy
- Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications
- Is Cosmic Speed-Up Due to New Gravitational Physics?
- Extended Theories of Gravity and their Cosmological and Astrophysical Applications
- Isolated and dynamical horizons and their applications
- General Laws of Black-Hole Dynamics
- On average properties of inhomogeneous fluids in general relativity I: dust cosmologies
- Black hole mass decreasing due to phantom energy accretion
- Friedmann Equations of FRW Universe in Scalar-tensor Gravity, f(R) Gravity and First Law of Thermodynamics
- Dynamical Horizons and their Properties
- Dark Energy from structure: a status report
- f(R) Gravity and scalar-tensor theory
- Quintessence without scalar fields
- 1/R Curvature Corrections as the Source of the Cosmological Acceleration
- Metric-affine f(R) theories of gravity
- Dynamical Horizons: Energy, Angular Momentum, Fluxes and Balance Laws
- Relativistic cosmology and large-scale structure
- Black hole boundaries
- On cosmic acceleration without dark energy
- Numerical Relativity and Compact Binaries
- Cosmic clocks, cosmic variance and cosmic averages
- Friedmann Equations and Thermodynamics of Apparent Horizons
- Dark energy from backreaction
- Exact solution to the averaging problem in cosmology
- Cosmological expansion and local physics
- Fourth order gravity: equations, history, and applications to cosmology
- On cosmological observables in a swiss-cheese universe
- Influence of global cosmological expansion on local dynamics and kinematics
- McVittie's Legacy: Black Holes in an Expanding Universe
- A new framework for analyzing the effects of small scale inhomogeneities in cosmology
- Production and decay of evolving horizons
- A Preliminary Indication of Evolution of Type Ia Supernovae from their Risetimes
- Quasinormal modes of a black hole surrounded by quintessence
- On the Hawking radiation as tunneling for a class of dynamical black holes
- Wald's entropy is equal to a quarter of the horizon area in units of the effective gravitational coupling
- Testing backreaction effects with observations
- Kodama time: Geometrically preferred foliations of spherically symmetric spacetimes
- Correspondence between kinematical backreaction and scalar field cosmologies - the `morphon field'
- Light-cone averages in a swiss-cheese universe
- Does the mass of a black hole decrease due to the accretion of phantom energy
- Regional averaging and scaling in relativistic cosmology
- Scale dependence of cosmological backreaction
- More on McVittie's Legacy: A Schwarzschild - de Sitter black and white hole embedded in an asymptotically CDM cosmology
- On the onset of cosmological backreaction
- Testing Cosmic Censorship with Black Hole Collisions
- Spherically Symmetric Solutions to Fourth-Order Theories of Gravity
- The Possibility of Cosmic Acceleration via Spatial Averaging in Lemaitre-Tolman-Bondi Models
- The generalized second law in phantom dominated universes in the presence of black holes
- Exact solution for scalar field collapse
- Non-symmetric trapped surfaces in the Schwarzschild and Vaidya spacetimes
- On the curvature of the present-day Universe
- Cosmological background solutions and cosmological backreactions
- Black hole entropy in scalar-tensor and f(R) gravity: an overview
- Generalized second law in modified theory of gravity
- Black hole entropy in modified gravity models
- On the generalization of McVittie's model for an inhomogeneity in a cosmological spacetime
- Black Hole Evaporation in an Expanding Universe
- 6+1 lessons from f(R) gravity
- Making sense of the bizarre behaviour of horizons in the McVittie spacetime
- Noether Charge and Black Hole Entropy in Modified Theories of Gravity
- Dynamical black holes with symmetry in Einstein-Gauss-Bonnet gravity
- Black holes and black hole thermodynamics without event horizons
- Spatially averaged cosmology in an arbitrary coordinate system
- Backreaction in the Lemaitre-Tolman-Bondi model
- The Spatial Averaging Limit of Covariant Macroscopic Gravity - Scalar Corrections to the Cosmological Equations
- Dynamics of intersecting brane systems -- Classification and their applications --
- Thermodynamical properties of hairy black holes in n spacetimes dimensions
- The metric-affine formalism of f(R) gravity
- Horizon Entropy in Modified Gravity
- What is the fate of a black hole embedded in an expanding universe?
- Self-similar cosmological solutions with dark energy. II: black holes, naked singularities and wormholes
- Exact Einstein-scalar field solutions for formation of black holes in a cosmological setting
- The Hawking temperature of expanding cosmological black holes
- Resource Letter: Dark Energy and the Accelerating Universe
- Spatial Variations of Fundamental Constants
- Accretion of phantom scalar field into a black hole
- Explicit Cosmological Coarse Graining via Spatial Averaging
- Phantom Energy Accretion onto Black Holes in Cyclic Universe
- Gauges and Cosmological Backreaction
- Cosmological Evolution of Black Holes in Brans-Dicke Gravity
- Generalized Second Law and phantom Cosmology: accreting black holes
- Evolution of Primordial Black Holes in a radiation and phantom energy environment
- Quasinormal modes of black holes absorbing dark energy
- Clifton's spherical solution in f(R) vacuo harbours a naked singularity
- Backreaction Issues in Relativistic Cosmology and the Dark Energy Debate
- Local temperature for dynamical black holes
- Averaging inhomogeneities in scalar-tensor cosmology
- Trapping Horizons in the Sultana-Dyer Space-Time
- Averaging procedure in variable-G cosmologies
Cited by in corpus (13)
- Spherical inhomogeneous solutions of Einstein and scalar-tensor gravity: a map of the land
- The charged McVittie spacetime
- Are quantization rules for horizon areas universal?
- Searching for dynamical black holes in various theories of gravity
- Astrophysical black holes as natural laboratories for fundamental physics and strong-field gravity
- Wyman's "other" scalar field solution, Sultana's generalization, and their Brans-Dicke and relatives
- Interpreting the conformal cousin of the Husain-Martinez-Nunez solution
- Exact cosmological black hole solutions in Scalar Tensor Vector Gravity
- Evolving black hole horizons in General Relativity and alternative gravity
- Turnaround radius in scalar-tensor gravity with quasilocal mass
- New time-dependent solutions of viable Horndeski gravity
- Embedding black holes and other inhomogeneities in the universe in various theories of gravity: a short review
- Critical phenomena in gravitational collapse of Husain-Martinez-Nunez scalar field