Dynamical photon sphere and time evolving shadow around black holes with temporal accretion
arXiv:2202.00201 · doi:10.1103/PhysRevD.105.104040
Abstract
A photon sphere is known as the geometrical structure shaping a black hole shadow. The mechanism is well understood for static or stationary black hole spacetimes such as the Schwarzschild and the Kerr spacetimes. In this paper, we investigate and explicitly specify a photon sphere that shapes a black hole shadow in a dynamical spacetime while taking the global structure of the spacetime into account. We consider dynamical and eternal black hole cases of the Vaidya spacetime, which represents a spherically symmetric black hole with accreting null dust. First, we numerically show that there are the dynamical photon sphere and photon orbits corresponding to the shadow edge in a moderate accretion case. Second, the photon spheres are derived analytically in special cases. Finally, we discuss the relation between our photon sphere and the several notions defined as a photon sphere generalization.
arXiv comment49 pages, 31 figures
References in corpus (24)
- First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
- Gravitational lensing in the strong field limit
- Black Hole Shadows, Photon Rings, and Lensing Rings
- The geometry of photon surfaces
- Shadows and strong gravitational lensing: a brief review
- Cosmological Multi-Black Hole Solutions
- Shadows of Multi-Black Holes: Analytic Exploration
- Measuring Mass Accretion Rate onto the Supermassive Black Hole in M 87 Using Faraday Rotation Measure with the Submillimeter Array
- Understanding photon sphere and black hole shadow in dynamically evolving spacetimes
- Uniqueness of photon spheres in electro-vacuum spacetimes
- Aspherical Photon and Anti-Photon Surfaces
- Extension of photon surfaces and their area: Static and stationary spacetimes
- Transversely trapping surfaces: Dynamical version
- Photon sphere and shadow of a time-dependent black hole described by a Vaidya metric
- Stability of null orbits on photon spheres and photon surfaces
- Uniqueness of photon sphere for Einstein-Maxwell-dilaton black holes with arbitrary coupling constant
- Photon surfaces as pure tension shells: Uniqueness of thin shell wormholes
- Photon surfaces in less symmetric spacetimes
- Photon regions and umbilic conditions in stationary axisymmetric spacetimes
- Killing tensors and photon surfaces in foliated spacetimes
- Photon surfaces in spherically, planar and hyperbolically symmetric spacetimes of D-dimensions: Sonic point/photon sphere correspondence
- Can we detect a supertranslated black hole?
- Do black hole shadows merge?
- Sonic Point and Photon Surface
Cited by in corpus (18)
- The Role of Topological Photon Spheres in Constraining the Parameters of Black Holes
- Distinct topological configurations of equatorial timelike circular orbit for spherically symmetric (hairy) black holes
- Greybody Factors Imprinted on Black Hole Ringdowns. II. Merging Binary Black Holes
- Effective Potential and Topological Photon Spheres: A Novel Approach to Black Hole Parameter Classification
- General Approach on Shadow Radius and Photon Spheres in Asymptotically Flat Spacetimes and the Impact of Mass-Dependent Variations
- Weak Gravity Conjecture Validation with Photon Spheres of Quantum Corrected AdS-Reissner-Nordstrom Black Holes in Kiselev Spacetime
- Analyzing the Influence of Geometrical Deformation on Photon Sphere and Shadow Radius: A New Analytical Approach -- Spherically Symmetric Spacetimes
- Perturbations of the Vaidya metric in the frequency domain: Quasi-normal modes and tidal response
- Slice-reducible conformal Killing tensors, photon surfaces and shadows
- Generalized Vaidya spacetime: horizons, conformal symmetries, surface gravity and diagonalization
- Long-term stable nonlinear evolutions of ultracompact black-hole mimickers
- Quasi-local studies of the particle surfaces and their stability in general spacetimes
- Analyzing the Influence of Geometrical Deformation on Photon Sphere and Shadow Radius: A New Analytical Approach -Stationary, and Axisymmetric Spacetime
- A generalization of photon sphere based on escape/capture cone
- Gravitational Black Hole Shadow Spectroscopy
- Shadow formation in gravitational collapse: Redshift and blueshift by spacetime dynamics
- Strong deflection of massive particles via the geodesic deviation equation
- Analytical approach for calculating shadow of dynamical black hole