Shadows, Signals, and Stability in Einsteinian Cubic Gravity

Abstract

We conduct a preliminary investigation into the phenomenological implications of Einsteinian cubic gravity (ECG), a 4-dimensional theory of gravity cubic in curvature of interest for its unique formulation and properties. We find an analytic approximation for a spherically symmetric black hole solution to this theory using a continued fraction ansatz. This approximate solution is valid everywhere outside of the horizon and we use it to study the orbit of massive test bodies near a black hole, specifically computing the innermost stable circular orbit. We compute constraints on the ECG coupling parameter imposed by Shapiro time delay. We then compute the shadow of an ECG black hole and find it to be larger than its Einsteinian counterpart in general relativity for the same value of the mass. Applying our results to Sgr A*, we find that departures from general relativity are small but in principle distinguishable.

References in corpus (16)

• The Confrontation between General Relativity and Experiment
• Holographic c-theorems in arbitrary dimensions
• Seeing a c-theorem with holography
• Effect of curvature squared corrections in AdS on the viscosity of the dual gauge theory
• A new method for shadow calculations: application to parameterised axisymmetric black holes
• Null geodesics and shadow of a rotating black hole in extended Chern-Simons modified gravity
• Higher Derivative Gravity, Causality and Positivity of Energy in a UV complete QFT
• A new cubic theory of gravity in five dimensions: Black hole, Birkhoff's theorem and C-function
• Shadow of a Kaluza-Klein rotating dilaton black hole
• New parametrization for spherically symmetric black holes in metric theories of gravity
• Einsteinian cubic gravity
• Imaging the Schwarzschild-radius-scale Structure of M87 with the Event Horizon Telescope using Sparse Modeling
• Shape and position of the shadow in the $\delta =2$ Tomimatsu-Sato space-time
• Four-dimensional black holes in Einsteinian cubic gravity
• An analytical approximation for the Einstein-dilaton-Gauss-Bonnet black hole metric
• Bounce Universe and Black Holes from Critical Einsteinian Cubic Gravity

Cited by in corpus (86)

• Shadow of a black hole surrounded by dark matter
• Shadow cast and Deflection angle of Kerr-Newman-Kasuya spacetime
• Shadow of a Spinning Black Hole in an Expanding Universe
• Concerns regarding the use of black hole shadows as standard rulers
• Probing a nonlinear electrodynamics black hole with thin accretion disk, shadow and deflection angle with M87* and Sgr A* from EHT
• Influence of Quantum Correction on the Black Hole Shadows, Photon Rings and Lensing Rings
• QED Effect on Black Hole Shadow
• Shadow analysis for rotating black holes in the presence of plasma for an expanding universe
• Analytical representation for metrics of scalarized Einstein-Maxwell black holes and their shadows
• (Generalized) quasi-topological gravities at all orders
• Testing Generalized Einstein-Cartan-Kibble-Sciama Gravity using Weak Deflection Angle and Shadow Cast
• Shadows of parametrized axially symmetric black holes allowing for separation of variables
• Quasinormal modes and Hawking radiation of black holes in cubic gravity
• Shadow cast of non-commutative black holes in Rastall gravity
• Quasiperiodic oscillations, weak field lensing and shadow cast around black holes in Symmergent gravity
• All higher-curvature gravities as Generalized quasi-topological gravities
• 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
• Black hole in quantum wave dark matter
• On the Size of a Black Hole: The Schwarzschild is the Biggest
• Shadows of the accelerating black holes
• General parametrization of black holes: the only parameters that matter
• Thermal Image and Phase Transitions of Charged AdS Black Holes using Shadow Analysis
• Big Bang Nucleosynthesis constraints on higher-order modified gravities
• On the Size of Rotating Black Holes
• On four-dimensional Einsteinian gravity, quasitopological gravity, cosmology and black holes
• Generalized quasi-topological gravities: the whole shebang
• Slowly rotating black holes in Einsteinian cubic gravity
• NUTs and bolts beyond Lovelock
• Rotating black holes without ${\mathbb{Z}}_2$ symmetry and their shadow images
• A note on the dynamical features for the extended $f(P)$ cubic gravity
• Electromagnetic Quasitopological Gravities
• Rotating dirty black hole and its shadow
• On the strong coupling of Einsteinian Cubic Gravity and its generalisations
• Gravitational Lensing by Black Holes in Einsteinian Cubic Gravity
• Study of circular geodesics and shadow of rotating charged black hole surrounded by perfect fluid dark matter immersed in plasma
• Black hole chemistry and holography in generalized quasi-topological gravity
• Extremal Rotating Black Holes in Einsteinian Cubic Gravity
• Nonlinearly charged black holes: Shadow and Thin-accretion disk
• Quasinormal modes and shadows of a new family of Ayón-Beato-Garc\'ıa black holes
• Charged black holes in Einsteinian cubic gravity and nonuniqueness
• Quasinormal modes of Einstein--scalar--Gauss--Bonnet black holes
• NUT charges and black hole shadows
• Aspects of Geometric Inflation
• Black Hole Chemistry: the first 15 years
• Quasinormal ringing of general spherically symmetric parametrized black holes
• Traversable wormholes in Einsteinian cubic gravity
• Einstein Quartic Gravity: Shadows, Signals, and Stability
• Precessing and periodic timelike orbits and their potential applications in Einsteinian cubic gravity
• Phase structure of the de Sitter Spacetime with KR field based on the Lyapunov exponent
• Observational Signatures: Shadow cast by the effective metric of photons for black holes with rational non-linear electrodynamics
• The shadows of accelerating Kerr-Newman black hole and constraints from M87*
• Quasinormal modes for non-minimally coupled scalar fields in regular black hole spacetimes: Grey-body factors, Area spectrum and Shadow radius
• The observer-dependent shadow of the Kerr black hole
• Cuspy and fractured black hole shadows in a toy model with axisymmetry
• Analytically Approximation Solution to Einstein-Cubic Gravity
• Topological Born-Infeld charged black holes in Einsteinian cubic gravity
• Excluding static and spherically symmetric black holes in Einsteinian cubic gravity with unsuppressed higher-order curvature terms
• Observational signatures of a static $f(R)$ black hole with thin accretion disk
• Analytically Approximation Solution to Higher Derivative Gravity
• Thin accretion disk images of the black hole in symmergent gravity
• Tachyonic cosmology with cubic contractions of the Riemann tensor
• Shadow of Kottler black hole in the presence of plasma for a co-moving observer
• Dark effects in $f(R,P)$ gravity
• Gravitational Lensing by Black Holes in Einstein Quartic Gravity
• Lensing Signatures of a Slowly-Accelerated Black Hole
• Small free field inflation in higher curvature gravity
• Reconstructions of $f(\mathcal{P})$ and $f(\mathcal{Q})$ gravity models from $(m,n)$-type Barrow Holographic Dark Energy: Analysis and Observational Constraints
• Charged rotating black strings in Einsteinian cubic gravity
• An exact black hole spacetime with scalar field and its shadow together with quasinormal modes
• Can we know about black hole thermodynamics through shadows?
• Can shadows connect black hole microstructures?
• Primary Proca Hair and the Double-Peak Optics of Black Holes
• Timelike orbits around accelerating black holes
• Mass-induced instability of SAdS black hole in Einstein-Ricci cubic gravity
• Braneworlds in Warped Einsteinian Cubic Gravity
• Existence of Vacuum Wormholes in Einsteinian Cubic Gravity
• Charged Black Holes in Einsteinian Quartic Gravity
• Gravitational Black Hole Shadow Spectroscopy
• Cosmological Weyl-Einsteinian-Cubic Gravity as a Gauge Theory of Gravity
• Signatures of cubic gravity in the strong regime
• General parametrization of wormhole spacetimes and its application to shadows and quasinormal modes
• Optical and orbital characterization of spherically symmetric static black holes of self-gravitating new nonlinear electrodynamics model
• Fast and accurate analytical formulas for light propagation in general static, spherically symmetric spacetimes
• Visible shapes of black holes M87* and SgrA*
• Effect of $R^2$ on the stability of de Sitter solution of the generalized Einsteinian cubic gravity
• Probing Weak-Force Corrections to Black Hole Geometry via Long Range Potentials: Feinberg-Sucher and Ferrer-Nowakowski Potentials