Shadow of a black hole at cosmological distance

Abstract

Cosmic expansion is expected to influence on the size of black hole shadow observed by comoving observer. Except the simplest case of Schwarzschild black hole in de Sitter universe, analytical approach for calculation of shadow size in expanding universe is still not developed. In this paper we present approximate method based on using angular size redshift relation. This approach is appropriate for general case of any multicomponent universe (with matter, radiation and dark energy). In particular, we have shown that supermassive black holes at large cosmological distances in the universe with matter may give a shadow size approaching to the shadow size of the black hole in the center of our galaxy, and present sensitivity limits.

7 pages, 2 figures

References in corpus (25)

• A luminous quasar at a redshift of z = 7.085
• An absorption profile centred at 78 megahertz in the sky-averaged spectrum
• An 800-million-solar-mass black hole in a significantly neutral Universe at redshift 7.5
• Shadows and strong gravitational lensing: a brief review
• Rotating regular black holes
• Measurement of the Kerr Spin Parameter by Observation of a Compact Object's Shadow
• The Current Ability to Test Theories of Gravity with Black Hole Shadows
• The Contribution of the Cosmological Constant to the Relativistic Bending of Light Revisited
• Black hole shadow in an expanding universe with a cosmological constant
• Geodesic equation in Schwarzschild--(anti-)de Sitter space--times: Analytical solutions and applications
• Complete analytic solution of the geodesic equation in Schwarzschild--(anti) de Sitter space--times
• Gravitational Lensing by Spinning Black Holes in Astrophysics, and in the Movie Interstellar
• Imaging the Supermassive Black Hole Shadow and Jet Base of M87 with the Event Horizon Telescope
• Light escape cones in local reference frames of Kerr-de Sitter black hole spacetimes and related black hole shadows
• Shadow cast by rotating braneworld black holes with a cosmological constant
• Detection of intrinsic source structure at ~3 Schwarzschild radii with Millimeter-VLBI observations of SAGITTARIUS A*
• Testing General Relativity with Accretion-Flow Imaging of Sgr A*
• Strong lensing in the Einstein-Straus solution
• Beyond lensing by the cosmological constant
• Seeing the unseeable
• Gravitational Lensing of a star by a rotating black hole
• Extreme gravitational lensing in vicinity of Schwarzschild-de Sitter black holes
• On the effect of the cosmological expansion on the gravitational lensing by a point mass
• Relativistic Aberration and the Cosmological Constant in Gravitational Lensing I: Introduction
• A virtual trip to the Schwarzschild-de Sitter black hole

Cited by in corpus (66)

• Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A${}^{\ast }$
• Calculating black hole shadows: Review of analytical studies
• Shadow of a black hole surrounded by dark matter
• Black holes with scalar hair in light of the Event Horizon Telescope
• Shadow of a Spinning Black Hole in an Expanding Universe
• Concerns regarding the use of black hole shadows as standard rulers
• Influence of Quantum Correction on the Black Hole Shadows, Photon Rings and Lensing Rings
• Superradiance evolution of black hole shadows revisited
• 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
• Testing dynamical torsion effects on the charged black hole's shadow, deflection angle and greybody with M87* and Sgr. A* from EHT
• Shadow and deflection angle of charged rotating black hole surrounded by perfect fluid dark matter
• Optical properties of Kerr-Newman spacetime in the presence of plasma
• Quasinormal modes and shadow of a Schwarzschild black hole with GUP
• Analytical study of gravitational lensing in Kerr-Newman black-bounce spacetime
• Toward determining the number of observable supermassive black hole shadows
• Black hole shadow as a standard ruler in cosmology
• Revisiting the shadow of braneworld black holes
• Analytical study of higher-order ring images of accretion disk around black hole
• Shape of higher-order images of equatorial emission rings around a Schwarzschild black hole: Analytical description with polar curves
• A review on analytical studies in Gravitational Lensing
• Black hole with confining electric potential in scalar-tensor description of regularized 4-dimensional Einstein-Gauss-Bonnet gravity
• Influence of an anisotropic matter field on the shadow of a rotating black hole
• A revisit of rotating black hole shadow with astrometric observables
• Rotating black holes without ${\mathbb{Z}}_2$ symmetry and their shadow images
• Rotating dirty black hole and its shadow
• Deflection of light rays by spherically symmetric black hole in dispersive medium
• First analytical calculation of black hole shadow in McVittie metric
• Silhouettes of invisible black holes
• Black hole shadow with a cosmological constant for cosmological observers
• Shadows of rotating Hayward-de Sitter black holes with astrometric observables
• Does the shape of the shadow of a black hole depend on motional status of an observer?
• Dissimilar Donuts in the Sky? Effects of a Pressure Singularity on the Circular Photon Orbits and Shadow of a Cosmological Black Hole
• Spherical photon orbits in the field of Kerr naked singularities
• Quasinormal modes and shadows of a new family of Ayón-Beato-Garc\'ıa black holes
• Thermodynamics and Shadows of quantum-corrected Reissner-Nordström black hole surrounded by quintessence
• Study of Einstein-bumblebee gravity with Kerr-Sen-like solution in the presence of a dispersive medium
• Black hole shadow in the view of freely falling observers
• Ergosphere, photon region structure, and the shadow of a rotating charged Weyl black hole
• The Unsettled Number: Hubble's Tension
• Shadow and weak deflection angle of a black hole in nonlocal gravity
• Light from Schwarzschild Black Holes in de Sitter expanding universe
• $H_0$ Tension on the Light of Supermassive Black Hole Shadows Data
• Spins of supermassive black holes M87* and SgrA* revealed from the size of dark spots in Event Horizon Telescope Images
• Quantum-corrected Schwarzschild AdS black hole surrounded by quintessence: Thermodynamics and Shadows
• Shadow of Kottler black hole in the presence of plasma for a co-moving observer
• Shadows of black holes at cosmological distances in the co-varying physical couplings framework
• Black hole shadow and Wandering null geodesics
• Total light bending in non-asymptotically flat black hole spacetimes
• Shadows from spinning black holes in extended 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?
• Climbing out of the shadows: building the distance ladder with black hole images
• Light from Reissner-Nordstrom-de Sitter black holes
• Shadow of axisymmetric, stationary and asymptotically flat black holes in the presence of plasma
• Shadow analysis of an approximate rotating black hole solution with weakly coupled global monopole charge
• Shedding Light on Gravity: Black Hole Shadows and Lensing Signatures in Lorentz Gauge Theory
• Shadow of topologically charged rotating braneworld black hole
• Visible shapes of black holes M87* and SgrA*
• Images of black holes viewed by distant observer
• Optical and Thermodynamic Properties of a Rotating Dyonic Black Hole Spacetime in $\mathcal{N}=2,U(1{)}^2$ gauged supergravity
• Shadow of a Noncommutative Thin-Shell Gravastar
• Shaving off soft hairs and the black hole image memory effect
• Shadows of Giants: Constraints on Stupendously Large Black Holes from Negative Sources against the Cosmic Microwave Background