Possibility of Identifying Matter around Rotating Black Hole with Black Hole Shadow

Abstract

Shadows cast by the rotating black hole in perfect fluid matter are studied using analytical method. We consider three kinds of matter with standard equation of state in Cosmology: $-1/3$ (dark matter), 0 (dust) and $1/3$ (radiation). The apparent shape of the shadow depends on the black hole spin $a$ and the perfect fluid matter intensity $k$. We find that the shadow is a perfect circle in the non-rotating case ($a=0$) and a distorted one in the rotating case ($a\ne 0$), similar to what is found for other black holes. Interestingly, different kinds of matter have different influence on the black hole shadow. Dark matter has the strongest effect, dust is the next and radiation is the weakest. By applying our result to the black hole Sgr A${}^{\ast }$ at the center of the Milky Way, we find that the angular resolution required to distinguish among different kinds of matter around the black hole is not much higher than the resolution of current astronomical instruments would be able to achieve in the near future. We propose that observing the black hole shadow provides a possibility of identifying the dominant matter near the black hole.

arXiv comment10 pages, 7 figures, 1 table. arXiv admin note: text overlap with arXiv:1804.08110

References in corpus (53)

• Viewing the Shadow of the Black Hole at the Galactic Center
• Quintessence and black holes
• Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre
• Shadows and strong gravitational lensing: a brief review
• Shadows of Kerr black holes with scalar hair
• Measurement of the Kerr Spin Parameter by Observation of a Compact Object's Shadow
• Photon Regions and Shadows of Kerr-Newman-NUT Black Holes with a Cosmological Constant
• Influence of a plasma on the shadow of a spherically symmetric black hole
• Shadow of rotating regular black holes
• A new method for shadow calculations: application to parameterised axisymmetric black holes
• Apparent shape of super-spinning black holes
• Shadow of a rotating braneworld black hole
• Observing the shadow of Einstein-Maxwell-Dilaton-Axion black hole
• Null geodesics and shadow of a rotating black hole in extended Chern-Simons modified gravity
• The Current Ability to Test Theories of Gravity with Black Hole Shadows
• RadioAstron -- a Telescope with a Size of 300 000 km: Main Parameters and First Observational Results
• Shadow of five-dimensional rotating Myers-Perry black hole
• Black hole shadow in an asymptotically-flat, stationary, and axisymmetric spacetime: The Kerr-Newman and rotating regular black holes
• Shadow of a Kaluza-Klein rotating dilaton black hole
• Optical properties of black hole in the presence of plasma: shadow
• Shadows of Einstein-dilaton-Gauss-Bonnet black holes
• Testing the No-Hair Theorem with Event Horizon Telescope Observations of Sagittarius A*
• The Submillimeter Bump in Sgr A* from Relativistic MHD Simulations
• Black hole shadow in an expanding universe with a cosmological constant
• Shadow of Kerr-Taub-NUT black hole
• Black Hole Solutions Surrounded by Perfect Fluid in Rastall Theory
• Testing General Relativity with the Shadow Size of Sgr A*
• Optical phenomena in brany Kerr spacetimes
• Simulating the Emission and Outflows from Accretion Disks
• Shapes of rotating nonsingular black hole shadows
• Shape and position of the shadow in the $\delta =2$ Tomimatsu-Sato space-time
• Observational appearance of inefficient accretion flows and jets in 3D GRMHD simulations: Application to Sgr~A*
• Shadows of Multi-Black Holes: Analytic Exploration
• Black Hole Shadow of Sgr A${}^{\ast }$ in Dark Matter Halo
• The Power of Imaging: Constraining the Plasma Properties of GRMHD Simulations using EHT Observations of Sgr A*
• Plasma diagnostic potential of 2p4f in N${}^{+}$ -- accurate wavelengths and oscillator strengths
• Shadow casted by a Konoplya-Zhidenko rotating non-Kerr black hole
• A General Relativistic Null Hypothesis Test with Event Horizon Telescope Observations of the black-hole shadow in Sgr A*
• Shadows of rotating five-dimensional charged EMCS black holes
• Black Hole Shadows of Charged Spinning Black Holes
• On The Nature of the Compact Dark Mass at the Galactic Center
• Energetics and optical properties of $6$-dimensional rotating black hole in pure Gauss-Bonnet gravity
• Shadow cast by rotating braneworld black holes with a cosmological constant
• Modeling Seven Years of Event Horizon Telescope Observations with Radiatively Inefficient Accretion Flow Models
• Kerr-Newman-AdS Black Hole Surrounded by Perfect Fluid Matter in Rastall Gravity
• Probing the magnetic field structure in Sgr A* on Black Hole Horizon Scales with Polarized Radiative Transfer Simulations
• Direct imaging rapidly-rotating non-Kerr black holes
• Shadows of Exact Binary Black Holes
• Black hole shadows in fourth-order conformal Weyl gravity
• Shadow of a noncommutative geometry inspired Ayón Beato García black hole
• Multiple shadows from distorted static black holes
• Testing General Relativity with High-Resolution Imaging of Sgr A*
• Thermodynamic Relations for Kiselev and Dilaton Black Hole

Cited by in corpus (20)

• Shadow of a black hole surrounded by dark matter
• Black Hole Surrounded by a Dark Matter Halo in the M87 Galactic Center and its Identification with Shadow Images
• Rotating Black Hole Shadow in Perfect Fluid Dark Matter
• Shadows of Sgr A${}^{\ast }$ Black Hole Surrounded by Superfluid Dark Matter Halo
• Analytical representation for metrics of scalarized Einstein-Maxwell black holes and their shadows
• Testing Generalized Einstein-Cartan-Kibble-Sciama Gravity using Weak Deflection Angle and Shadow Cast
• Einstein-scalar-Gauss-Bonnet black holes: Analytical approximation for the metric and applications to calculations of shadows
• 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
• Black hole surrounded by the pseudo-isothermal dark matter halo
• Deformed black hole immersed in dark matter spike
• Rotating dirty black hole and its shadow
• The shadow of regular black holes with asymptotically Minkowski core
• Parameter estimation of Kerr-Bertotti-Robinson black holes using their shadows
• The eccentricity enhancement effect of intermediate-mass-ratio-inspirals: dark matter and black hole mass
• Deflection and Gravitational lensing of null and timelike signals in the Kiselev black hole spacetime in the weak field limit
• Topological dyonic black holes of massive gravity with generalized quasitopological electromagnetism
• Effect of quantum deformed black hole on BH shadow in two-dimensional Dilaton gravity
• Shadows and Observational Images of a Schwarzschild-like Black Hole Surrounded by a Dehnen-type Dark Matter Halo
• Saturation of Chaos Bound in a Phenomenological Rotating Black Hole--Effective Matter System at Low-Temperature Limit