Imprints of Dark Matter on Black Hole Shadows using Spherical Accretions

Abstract

We study the possibility of identifying dark matter in the galactic center from the physical properties of the electromagnetic radiation emitted from a optical-thin disk region around a static and spherically symmetric black hole. In particular, we consider two specific models for the optical-thin disk region: a gas at rest and a gas in a radial free fall. Due to the effect of dark matter on the spacetime geometry, we find that the dark matter can increase or decrease the intensity of the electromagnetic flux radiation depending on the dark matter model. To this end, we analyze two simple dark matter models having different mass functions $\mathcal{M}(r)$, with a matter mass $M$, thickness $\Delta r_s$ along with a dark matter core radius surrounding the black hole. In addition to that, we explore the scenario of a perfect fluid dark matter surrounding the black hole. We show that in order to have significant effect of dark matter on the intensity of the electromagnetic flux radiation, a high energy density of dark matter near the black hole is needed. We also find that the surrounding dark matter distribution plays a key role on the shadow radius and the intensity of the electromagnetic flux radiation, respectively. Finally, we have used the relation between the shadow radius and the quasinormal modes (QNMs) to compute the real part of QNM frequencies.

arXiv comment14 pages. Accepted for publication in EPJC

References in corpus (56)

• Viewing the Shadow of the Black Hole at the Galactic Center
• Geodesic stability, Lyapunov exponents and quasinormal modes
• Black Hole Shadows, Photon Rings, and Lensing Rings
• Relativistic redshift of the star S0-2 orbiting the Galactic center supermassive black hole
• Testing the rotational nature of the supermassive object M87* from the circularity and size of its first image
• Measurement of the Kerr Spin Parameter by Observation of a Compact Object's Shadow
• Influence of a plasma on the shadow of a spherically symmetric black hole
• Shadow of rotating regular black holes
• Hunting for extra dimensions in the shadow of M87*
• Shadow of a black hole surrounded by dark matter
• Apparent shape of super-spinning black holes
• Shadow of a rotating braneworld black hole
• Observing the shadow of Einstein-Maxwell-Dilaton-Axion black hole
• Are eikonal quasinormal modes linked to the unstable circular null geodesics?
• Magnetically charged black holes from non-linear electrodynamics and the Event Horizon Telescope
• Shadows of spherically symmetric black holes and naked singularities
• Black holes with scalar hair in light of the Event Horizon Telescope
• Stationary black holes and light rings
• Can the supermassive objects at the centers of galaxies be traversable wormholes? The first test of strong gravity for mm/sub-mm VLBI facilities
• The Shadow of a Spherically Accreting Black Hole
• Shadow and Deflection Angle of Rotating Black Holes in Perfect Fluid Dark Matter with a Cosmological Constant
• Shadows and photon spheres with spherical accretions in the four-dimensional Gauss-Bonnet black hole
• Black hole shadow in an expanding universe with a cosmological constant
• Connection between black-hole quasinormal modes and lensing in the strong deflection limit
• Shadow and Quasinormal Modes of a Rotating Loop Quantum Black Hole
• Black Hole Surrounded by a Dark Matter Halo in the M87 Galactic Center and its Identification with Shadow Images
• Influence of quintessence dark energy on the shadow of black hole
• Black hole shadow in a general rotating spacetime obtained through Newman-Janis algorithm
• Shadows and deflection angle of charged and slowly rotating black holes in Einstein-Æther theory
• Shapes of rotating nonsingular black hole shadows
• Quasinormal Modes of Black Holes Surrounded by Dark Matter and Their Connection with the Shadow Radius
• A near-IR variability study of the Galactic black hole: a red noise source with no detected periodicity
• Shape and position of the shadow in the $\delta =2$ Tomimatsu-Sato space-time
• Curvature radius and Kerr black hole shadow
• Black Hole Space-time In Dark Matter Halo
• Black Hole Shadow of Sgr A${}^{\ast }$ in Dark Matter Halo
• Rotating Black Hole Shadow in Perfect Fluid Dark Matter
• Galactic Dark Matter in the Phantom Field
• Image of the Janis-Newman-Winicour naked singularity with a thin accretion disk
• Can we distinguish black holes from naked singularities by the images of their accretion disks?
• On the shadow of rotating traversable wormholes
• Geometric modeling of M87* as a Kerr black hole or a non-Kerr compact object
• Shadow of a Naked Singularity without Photon Sphere
• Analytical correspondence between shadow radius and black hole quasinormal frequencies
• Rotating regular black holes in conformal massive gravity
• Kerr-Anti-De-Sitter/De-Sitter Black Hole In Perfect Fluid Dark Matter Background
• Intrinsic curvature and topology of shadows in Kerr spacetime
• A hidden friend for the galactic center black hole, Sgr A*
• Weak deflection angle of a dirty black hole
• Shadow of nulllike and timelike naked singularities without photon spheres
• On the Size of Rotating Black Holes
• Shadow Images of a Rotating Dyonic Black Hole with a Global Monopole Surrounded by Perfect Fluid
• Rotating black holes without ${\mathbb{Z}}_2$ symmetry and their shadow images
• Null geodesics, quasinormal modes, and thermodynamic phase transition for charged black holes in asymptotically flat and dS spacetimes
• Deflection of Light and Shadow Cast by a Dual Charged Stringy Black Hole
• Testing horizon topology with electromagnetic observations

Cited by in corpus (59)

• Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A${}^{\ast }$
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Photon Ring and Observational Appearance of a Hairy Black Hole
• Superradiance evolution of black hole shadows revisited
• No-Hair Theorem in the Wake of Event Horizon Telescope
• Photon Spheres and Spherical Accretion Image of a Hairy Black Hole
• Dark matter effect on the weak deflection angle by black holes at the center of Milky Way and M87 galaxies
• Axion-plasmon or magnetized plasma effect on an observable shadow and gravitational lensing of a Schwarzschild black hole
• Shadows of black holes with dark matter halo
• Thin accretion disk in the Simpson-Visser black-bounce and wormhole spacetimes
• Black hole in quantum wave dark matter
• Rings and images of Horndeski hairy black hole illuminated by various thin accretions
• Constraints on Barrow entropy from M87* and S2 star observations
• The Optical Appearance of Charged Four-Dimensional Gauss-Bonnet Black Hole with Strings Cloud and Non-Commutative Geometry Surrounded by Various Accretions Profiles
• Optical appearance of Einstein-Æther black hole surrounded by thin disk
• Black hole surrounded by the pseudo-isothermal dark matter halo
• Quasinormal modes-shadow correspondence for rotating regular black holes
• Images from disk and spherical accretions of hairy Schwarzschild black holes
• Investigating effects of dark matter on photon orbits and black hole shadows
• Quantum effects on the black hole shadow and deflection angle in presence of plasma
• Black holes surrounded by Einstein clusters as models of dark matter fluid
• Charged black-bounce spacetimes: Photon rings, shadows and observational appearances
• Gravitational Lensing by Black Holes with Multiple Photon Spheres
• Images of hairy Reissner-Nordström black hole illuminated by static accretions
• Observational constraints on Yukawa cosmology and connection with black hole shadows
• Gravitational Lensing of Schwarzschild and Charged Black Holes Immersed in Perfect Fluid Dark Matter Halo
• Thermal fluctuations, quasi-normal modes and phase transition of the charged AdS black hole with perfect fluid dark matter
• Testing Born-Infeld $f(T)$ teleparallel gravity through Sgr A${}^{\star }$ observations
• Joule-Thomson Expansion of RN-AdS Black Hole Immersed in Perfect Fluid Dark Matter
• Constraints via the Event Horizon Telescope for Black Hole Solutions with Dark Matter under the Generalized Uncertainty Principle Minimal Length Scale Effect
• Effect of magnetized plasma on shadow and gravitational lensing of a Reissner-Nordström black hole
• Apparent and emergent dark matter around a Schwarzschild black hole
• The effect of scalar hair on the charged black hole with the images from accretions disk
• Dark matter signatures of black holes with Yukawa potential
• Shadows and photon rings of a spherically accreting Kehagias-Sfetsos black hole
• Geodesic structure, shadow and optical appearance of black hole immersed in Chaplygin-like dark fluid
• Accretion of matter onto black holes in massive gravity with Lorentz symmetry breaking
• Ruppeiner Geometry of the RN-AdS Black Hole Using Shadow Formalism
• Energy extraction from Janis-Newman-Winicour naked singularity
• Charged Black Holes with Yukawa Potential
• Schwarzschild black hole surrounded by a cloud of strings in the background of perfect fluid dark matter
• Thermodynamics of Non-linear magnetic-charged AdS black hole surrounded by quintessence, in the background of perfect fluid dark matter
• Constraining Self-interacting Scalar Field Dark Matter From the Black Hole Shadow of the Event Horizon Telescope
• Time Delay of Light in the Gravitational lensing of Supermassive Black Holes in Dark Matter Halos
• Theory and phenomenology of a four dimensional string-corrected black hole
• Galactic black hole immersed in a dark halo with its surrounding thin accretion disk
• Effect of quintessence dark energy on the shadow of Hayward black holes with spherical accretion
• Accretion of Self-interacting Scalar Field Dark Matter Onto a Reissner-Nordström Black Hole
• Corrected thermodynamics of nonlinear magnetic-charged black hole surrounded by perfect fluid dark matter
• On optical appearance of Einstein-Maxwell-Æther black holes surrounded by various accretions
• Probing the Solar System for Dark Matter Using the Sagnac Effect
• Exploring millicharged dark matter components from the shadows
• Synchrotron emitting Komissarov torus around naked singularities
• Black holes surrounded by massive vector fields in Kaluza-Klein gravity
• Photon surfaces, shadows and accretion disks in gravity with minimally coupled scalar field
• Geodesic dynamics and multi-inclination images of a non-minimally coupled black hole with a thin accretion disk
• Quasinormal modes of regular black holes surrounded by skewed dark matter distributions
• Multi-ring images of thin accretion disk of a regular naked compact object
• Optical appearance of regularized compact objects without an exterior photon sphere