Formalism for testing theories of gravity using lensing by compact objects. III. Braneworld gravity

  title={Formalism for testing theories of gravity using lensing by compact objects. III. Braneworld gravity},
  author={Charles R. Keeton and Arlie O. Petters},
  journal={Physical Review D},
Braneworld gravity is a model that endows physical space with an extra dimension. In the type II Randall-Sundrum braneworld gravity model, the extra dimension modifies the spacetime geometry around black holes, and changes predictions for the formation and survival of primordial black holes. We develop a comprehensive analytical formalism for far-field black hole lensing in this model, using invariant quantities to compute all the geometric optics lensing observables: bending angle, image… 
Braneworld Black Holes
In this thesis we investigate black holes in the Randall-Sundrum braneworld scenario. We begin with an overview of extra-dimensional physics, from the original proposal of Kaluza and Klein up to the
Can we identify massless braneworld black holes by observations?
For an extension of the previous work on gravitational lensing by massless braneworld black holes, we investigate their microlensing phenomena and shadows and discuss how to distinguish them from
Weak deflection gravitational lensing for photons coupled to Weyl tensor in a Schwarzschild black hole
Beyond the Einstein–Maxwell model, electromagnetic field might couple with gravitational field through the Weyl tensor. In order to provide one of the missing puzzles of the whole physical picture,
Probing a regular non-minimal Einstein-Yang-Mills black hole with gravitational lensings
Abstract We investigate weak and strong deflection gravitational lensings of the regular black hole predicted by a non-minimal Einstein–Yang–Mills theory. We find that its weak deflection lensing is
Strong Deflection Limit Lensing Effects in the Minimal Geometric Deformation and Casadio-Fabbri-Mazzacurati Solutions
In this paper we apply the strong deflection limit approach to investigate the gravitational lensing phenomena beyond general relativity. This is accomplished by considering the lensing effects
Relativistic Images in Randall-Sundrum II Braneworld Lensing
In this paper, we explore the properties of gravitational lensing by black holes in the Randall-Sundrum II braneworld. We use numerical techniques to calculate lensing observables using the tidal
Gravitational lensing by hairy black holes in Einstein-scalar-Gauss-Bonnet theories
We investigate the weak and strong deflection gravitational lensing by the hairy black holes in the Einstein-scalar-Gauss-Bonnet (EsGB) gravity with five types of coupling functions (quadratic,
Heterotic Braneworld Gravity
In the past decade, there has been considerable interest in braneworld scenarios where the universe lives on a brane in a higher-dimensional bulk and gravity is modified. The heterotic braneworld
Classical tests of General Relativity in thick branes
Classical tests of General Relativity in braneworld scenarios have been investigated recently with the purpose of posing observational constraints on the parameters of some models of infinitely thin
Weak and strong deflection gravitational lensings by a charged Horndeski black hole
A charged black hole was predicted by the Einstein--Horndeski--Maxwell theory. In order to provide its observational signatures, we investigate its weak and strong deflection gravitational lensings.


Formalism for testing theories of gravity using lensing by compact objects: Static, spherically symmetric case
We are developing a general, unified, and rigorous analytical framework for using gravitational lensing by compact objects to test different theories of gravity beyond the weak-deflection limit. In
Formalism for testing theories of gravity using lensing by compact objects. II. Probing post-post-Newtonian metrics
We study gravitational lensing by compact objects in gravity theories that can be written in a post-post-Newtonian (PPN) framework: i.e., the metric is static and spherically symmetric, and can be
The braneworld description of our universe entails a large extra dimension and a fundamental scale of gravity that might be lower by several orders of magnitude compared to the Planck scale. An
The existence of braneworld black holes may be of primordial origin, or may even be produced in high energy particle collisions in the laboratory and in cosmic ray showers as well. These black holes
Gravity, stability, and energy conservation on the Randall-Sundrum brane world
We carefully investigate the gravitational perturbation of the Randall-Sundrum (RS) single brane-world solution [L. Randall and R. Sundrum, Phys. Rev. Lett. $83,$ 4690 (1999)], based on a covariant
Bending of Light and Gravitational Signals in Certain On-Brane and Bulk Geometries
In this article, we first investigate the bending of light rays in 4D line elements representing spherically symmetric, static on–brane geometries. The amount of bending in these four dimensional,
On relativistic corrections to microlensing effects: applications to the Galactic black hole
The standard treatment of gravitational lensing by a point mass lens M is based on a weak-field deflection angle α = 2/x 0 , where x 0 = r 0 c 2 /2GM with r 0 being the distance of closest approach
Strong gravitational lensing by braneworld black holes
In this paper, we use the strong field limit approach to investigate the gravitational lensing properties of braneworld black holes. Applying this method to the supermassive black hole at the center
A New method for determining cumulative gravitational lensing effects in inhomogeneous universes
We present a new approach to calculating the statistical distributions for magnification, shear, and rotation of images of cosmological sources due to gravitational lensing. In this approach one
Primordial black holes in braneworld cosmologies: Accretion after formation
We recently studied the formation and evaporation of primordial black holes in a simple braneworld cosmology, namely the Randall-Sundrum type II cosmology. Here we study the effect of accretion from