Modified Gravity Black Holes and their Observable Shadows

Abstract

The shadows cast by non-rotating and rotating modified gravity (MOG) black holes are determined by the two parameters mass $M$ and angular momentum $J=Ma$. The sizes of the shadows cast by the spherically symmetric static Schwarzschild-MOG and Kerr-MOG rotating black holes increase significantly as the free parameter $\alpha$ is increased from zero. The Event Horizon Telescope (EHT) shadow image measurements can determine whether Einstein's general relativity is correct or whether it should be modified in the presence of strong gravitational fields.

5 pages, 2 figures

References in corpus (3)

• Scalar-Tensor-Vector Gravity Theory
• The MOG weak field approximation and observational test of galaxy rotation curves
• The MOG Weak Field approximation II. Observational test of Chandra X-ray Clusters

Cited by in corpus (100)

• Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A${}^{\ast }$
• Black holes, gravitational waves and fundamental physics: a roadmap
• Shadows and strong gravitational lensing: a brief review
• Shadows of Kerr black holes with scalar hair
• Black Holes in Modified Gravity (MOG)
• Shadow cast and Deflection angle of Kerr-Newman-Kasuya spacetime
• Black Hole Based Tests of General Relativity
• Chaotic lensing around boson stars and Kerr black holes with scalar hair
• Black hole shadow in a general rotating spacetime obtained through Newman-Janis algorithm
• Imaging a boson star at the Galactic center
• Probing a nonlinear electrodynamics black hole with thin accretion disk, shadow and deflection angle with M87* and Sgr A* from EHT
• Asymptotic safety casts its shadow
• Shadows of Sgr A${}^{\ast }$ Black Hole Surrounded by Superfluid Dark Matter Halo
• Constraining a modified gravity theory in strong gravitational lensing and black hole shadow observations
• Black Hole Thermodynamics in MOdified Gravity (MOG)
• Extended Uncertainty Principle Black Holes
• Black hole shadow of a rotating scale--dependent black hole
• Rotating regular black holes in conformal massive gravity
• Observational signature of near-extremal Kerr-like black holes in a modified gravity theory at the Event Horizon Telescope
• Shadows of Kerr-like black holes in a modified gravity theory
• Weak gravitational lensing by Kerr-MOG Black Hole and Gauss-Bonnet theorem
• Black Hole Images as Tests of General Relativity: Effects of Spacetime Geometry
• Quasiperiodic oscillations, weak field lensing and shadow cast around black holes in Symmergent gravity
• Revisiting the shadow of a black hole in the presence of a plasma
• Shadow and weak gravitational lensing of a rotating regular black hole in a non-minimally coupled Einstein-Yang-Mills theory in the presence of plasma
• Testing Symmergent gravity through the shadow image and weak field photon deflection by a rotating black hole using the M87${}^{\ast }$ and Sgr. A${}^{\ast }$ results
• Shadow cast by a rotating charged black hole in quintessential dark energy
• The masses and shadows of the black holes Sagittarius A* and M87* in modified gravity (MOG)
• From a locality-principle for new physics to image features of regular spinning black holes with disks
• Black hole in quantum wave dark matter
• The shadow and photon sphere of the charged black hole in Rastall gravity
• Accretion disks around black holes in Scalar-Tensor-Vector Gravity
• Magnetized particle motion around magnetized Schwarzschild-MOG black hole
• On the Size of a Black Hole: The Schwarzschild is the Biggest
• Quasinormal Modes of Modified Gravity (MOG) Black Holes
• Thermal Image and Phase Transitions of Charged AdS Black Holes using Shadow Analysis
• Observational signatures of strongly naked singularities: image of the thin accretion disk
• On the Size of Rotating Black Holes
• Mass and spin of a Kerr black hole in modified gravity and a test of the Kerr black hole hypothesis
• Superradiance in Modified Gravity (MOG)
• Modified gravity black hole lensing observables in weak and strong field of gravity
• Rotating black holes without ${\mathbb{Z}}_2$ symmetry and their shadow images
• Inner-most stable circular orbit in Kerr-MOG black hole
• Black hole shadow of a rotating polytropic black hole by the Newman--Janis algorithm without complexification
• LIGO GW150914 and GW151226 Gravitational Wave Detection and Generalized Gravitation Theory (MOG)
• Polarized image of a rotating black hole in Scalar-Tensor-Vector-Gravity theory
• Black hole shadows in fourth-order conformal Weyl gravity
• Geodesic motion around hairy black holes
• Kerr-MOG-(A)dS black hole and its shadow in scalar-tensor-vector gravity theory
• Merger estimates for rotating Kerr black holes in modified gravity
• Observational constraints on Yukawa cosmology and connection with black hole shadows
• Nonlinearly charged black holes: Shadow and Thin-accretion disk
• Circular Motion and Energy Extraction in a Rotating Black Hole
• Weak cosmic censorship conjecture in Kerr black holes of modified gravity
• Study of energy extraction and epicyclic frequencies in Kerr-MOG~(Modified Gravity) black hole
• Area (or Entropy) Products in Modified Gravity and Kerr-MOG/CFT Correspondence
• An exact solution for a rotating black hole in modified gravity
• Quasinormal modes and shadow of Schwarzschild black holes embedded in a Dehnen type dark matter halo exhibiting string cloud
• Dark matter signatures of black holes with Yukawa potential
• Harvesting energy driven by Comisso-Asenjo process from Kerr-MOG black holes
• Observational Signatures: Shadow cast by the effective metric of photons for black holes with rational non-linear electrodynamics
• Black hole accretion in scalar-tensor-vector gravity
• Periodic orbits and their gravitational wave radiations around the Schwarzschild-MOG black hole
• Deflection angle evolution with plasma medium and without plasma medium in a parameterized black hole
• Overspinning Kerr-MOG black holes by test fields and the third law of black hole dynamics
• Chaos in a Magnetized Modified Gravity Schwarzschild Spacetime
• The observer-dependent shadow of the Kerr black hole
• Charged Black Holes with Yukawa Potential
• Shadows and accretion disk images of charged rotating black hole in modified gravity theory
• High-dimensional Schwarzschild black holes in scalar-tensor-vector gravity theory
• On new regular charged black hole solutions: Limiting Curvature Condition, Quasinormal modes and Shadows
• Accretion onto a static spherically symmetric regular MOG dark compact object
• Gravito-electromagnetic perturbations of MOG black holes with a cosmological constant: Quasinormal modes and Ringdown waveforms
• Gravitational synchrotron radiation and Penrose process in STVG theory
• The phase space analysis of modified gravity (MOG)
• Scale-dependent slowly rotating black holes with flat horizon structure
• Observational signatures of a static $f(R)$ black hole with thin accretion disk
• Transforming singular black holes into regular black holes sourced by nonlinear electrodynamics
• Geodesic analysis and black hole shadows on a general non--extremal rotating black hole in five--dimensional gauged supergravity
• Shadow and weak deflection angle of a black hole in nonlocal gravity
• Times of arrival (TOA) of signals in the Kerr-MOG black hole
• Compact Stars in Vector-Tensor-Horndeski Theory of Gravity
• Global stability of self-gravitating disks in modified gravity
• Black hole photon ring beyond General Relativity: an integrable parametrization
• Circular motion of particle around Schwarzschild-MOG black hole
• Stellar Bar evolution in the absence of dark matter halo
• Astrophysical and electromagnetic emissivity properties of black holes surrounded by a quintessence type exotic fluid in the Scalar-Vector-Tensor Modified Gravity
• On the gravitational stability of the Maclaurin disk
• Distinguishing Black Hole and Naked Singularity in MOG via Inertial Frame Dragging Effect
• Thermodynamics of Non-Commutative Scalar-Tensor-Vector Gravity Black holes
• Black holes surrounded by massive vector fields in Kaluza-Klein gravity
• Gravitational Lensing by a Dark Compact Object in Modified Gravity and Observational Constraints from Einstein Rings
• Distinguishing Signature of Kerr-MOG Black Hole and Superspinar via Lense-Thirring Precession
• Light propagation and quasinormal modes of a topologically charged Schwarzschild-Klinkhamer wormhole
• Terrestrial Sagnac delay in scalar-tensor-vector-gravity
• Extremal cosmological black holes in Horndeski gravity and the anti-evaporation regime
• Relativistic Thermal Emission from Accretion Disks in Kerr-MOG Spacetimes
• Zero Mass limit of Kerr-MOG Black Hole Equals Wormhole
• Shadows of generalised Hayward spacetimes : in vacuum and with plasma
• Scattering of quantum fields by a MOG Black Hole