Shadow and Photon Sphere of Black Hole in Clouds of Strings and Quintessence

Abstract

In this work, we study the shadow and photon sphere of the black bole in clouds of strings and quintessence with static and infalling spherical accretions. We obtain the geodesics of the photons near a black hole with different impact parameters $b$. The string clouds model and quintessence influence the specific intensity by affecting the geodesic and the average radial position of photons. And the range of string clouds parameter $a$ is constrained to ensure that the shadow can be observed. Moreover, we use a model of the photon emissivity $j({\nu }_e)$ to get the specific intensities. The light sources in the accretion follow a normal distribution with an attenuation factor $\gamma$. The shadow with static spherical accretion is plotted. The apparent shape of the shadow is a perfect circle, and the value of $\gamma$ affects the brightness of the photon sphere. We investigate the profile and specific intensity of the shadows with static and infalling spherical accretions respectively. The interior of the shadows with an infalling spherical accretion will be darker than that with the static spherical accretion, and the specific intensity with both static and infalling spherical accretion gradually converges.

References in corpus (64)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Dynamics of dark energy
• First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
• First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole
• Cosmological Tracking Solutions
• First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole
• First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring
• The Cosmic Triangle: Revealing the State of the Universe
• First M87 Event Horizon Telescope Results. II. Array and Instrumentation
• Quintessence and black holes
• First M87 Event Horizon Telescope Results. III. Data Processing and Calibration
• Supernova Limits on the Cosmic Equation of State
• Black Hole Shadows, Photon Rings, and Lensing Rings
• 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
• Cosmic Concordance and Quintessence
• Shadow of rotating regular black holes
• Shadow of a black hole surrounded by dark matter
• A new method for shadow calculations: application to parameterised axisymmetric black holes
• 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
• The innermost stable circular orbit and shadow in the novel $4D$ Einstein-Gauss-Bonnet gravity
• Black hole shadow in an asymptotically-flat, stationary, and axisymmetric spacetime: The Kerr-Newman and rotating regular black holes
• Cosmological Parameters from Eigenmode Analysis of Sloan Digital Sky Survey Galaxy Redshifts
• 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
• Shadows of Einstein-dilaton-Gauss-Bonnet black holes
• Lensing by Kerr Black Holes
• Shadows and photon spheres with spherical accretions in the four-dimensional Gauss-Bonnet black hole
• Shadow of Kerr-Taub-NUT black hole
• Light propagation in a plasma on Kerr spacetime: Separation of the Hamilton-Jacobi equation and calculation of the shadow
• Influence of quintessence dark energy on the shadow of black hole
• Optical phenomena in brany Kerr spacetimes
• Shapes of rotating nonsingular black hole shadows
• Concerns regarding the use of black hole shadows as standard rulers
• Shape and position of the shadow in the $\delta =2$ Tomimatsu-Sato space-time
• Shadows of Multi-Black Holes: Analytic Exploration
• Photon Ring and Observational Appearance of a Hairy Black Hole
• Influence of Quantum Correction on the Black Hole Shadows, Photon Rings and Lensing Rings
• QED Effect on Black Hole Shadow
• Black holes in Einstein-Gauss-Bonnet gravity with a string cloud background
• Black Hole Shadows of Charged Spinning Black Holes
• Lensing and shadow of a black hole surrounded by a heavy accretion disk
• Spherical orbits around a Kerr black hole
• Shadow cast by rotating braneworld black holes with a cosmological constant
• Shadow cast by a rotating charged black hole in quintessential dark energy
• On the Size of a Black Hole: The Schwarzschild is the Biggest
• Direct imaging rapidly-rotating non-Kerr black holes
• Shadows of black hole surrounded by anisotropic fluid in Rastall theory
• Separating Astrophysics and Geometry in Black Hole Images
• Thermodynamic criticality of d-dimensional charged AdS black holes surrounded by quintessence with a cloud of strings background
• Black hole shadows in fourth-order conformal Weyl gravity
• Interpreting spacetimes of any dimension using geodesic deviation
• Superentropic AdS Black Hole Shadows
• Quasinormal mode and spectroscopy of a Schwarzschild black hole surrounded by a cloud of strings in Rastall gravity
• Shadow of a noncommutative geometry inspired Ayón Beato García black hole
• Search for Non-Triggered Gamma Ray Bursts in the BATSE Continuous Records: Preliminary Results
• Multiple shadows from distorted static black holes
• Optics near Kerr black holes: spectra of advection dominated accretion flows
• Black Hole Shadow Drift and Photon Ring Frequency Drift

Cited by in corpus (17)

• Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A${}^{\ast }$
• On null geodesics and shadow of hairy black holes in Einstein-Maxwell-dilaton gravity
• Observable characteristics of the charged black hole surrounded by thin disk accretion in Rastall gravity
• Curvatures, Photon Spheres and Black Hole Shadows
• Effects of Born-Infeld electrodynamics on black hole shadows
• Study of null and time-like geodesics in the exterior of a Schwarzschild black hole with quintessence and cloud of strings
• Observational Appearances of Magnetically Charged Black Holes in Born-Infeld Electrodynamics
• Spherical photon orbits around a rotating black hole with quintessence and cloud of strings
• Geodesic structure, shadow and optical appearance of black hole immersed in Chaplygin-like dark fluid
• Photon orbits and phase transition for Letelier AdS black holes immersed in perfect fluid dark matter
• Shadow thermodynamics of non-linear charged Anti-de Sitter black holes
• Schwarzschild black hole surrounded by a cloud of strings in the background of perfect fluid dark matter
• Observational signatures of a static $f(R)$ black hole with thin accretion disk
• Parameter constraints from shadows of Kerr-Newman-dS black holes with cloud strings and quintessence
• Optical appearance of the Schwarzschild black hole in the string cloud context
• Black hole solutions surrounded by anisotropic fluid in f(T,T) gravity
• Tidal forces around the Letelier-Alencar cloud of strings black hole