Gravitational Lensing of a star by a rotating black hole

Abstract

The gravitational lensing of a finite star moving around a rotating Kerr black hole has been numerically calculated. Calculations for the direct image of the star and for the first and second light echoes have been performed for the star moving with an orbital period of 3.22 h around the supermassive black hole SgrA* at the Galactic Center. Time dependences for the observed star position on the celestial sphere, radiation flux from the star, frequency of detected radiation, major and minor semiaxes of the lensed star image have been calculated and plotted. The detailed observation of such lensing requires a space interferometer such as the Russian Millimetron project.

arXiv comment8 pages, 12 figures. Related video is available at https://youtu.be/P6DneV0vk7U

References in corpus (58)

• Viewing the Shadow of the Black Hole at the Galactic Center
• Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre
• Constraining Black Hole Spin Via X-ray Spectroscopy
• Shadows of Kerr black holes with scalar hair
• Relativistic images of Schwarzschild black hole lensing
• Jet Launching Structure Resolved Near the Supermassive Black Hole in M87
• Relativistic X-ray Lines from the Inner Accretion Disks Around Black Holes
• A new method for shadow calculations: application to parameterised axisymmetric black holes
• Shapes and Positions of Black Hole Shadows in Accretion Disks and Spin Parameters of Black Holes
• High Resolution Linear Polarimetric Imaging for the Event Horizon Telescope
• Shadow of a Kaluza-Klein rotating dilaton black hole
• A coordinate-independent characterization of a black hole shadow
• The Submillimeter Bump in Sgr A* from Relativistic MHD Simulations
• Light propagation in a plasma on Kerr spacetime: Separation of the Hamilton-Jacobi equation and calculation of the shadow
• Imaging the Schwarzschild-radius-scale Structure of M87 with the Event Horizon Telescope using Sparse Modeling
• Measuring the Kerr spin parameter of regular black holes from their shadow
• Testing General Relativity with the Shadow Size of Sgr A*
• Imaging the Black Hole Silhouette of M87: Implications for Jet Formation and Black Hole Spin
• BlackHoleCam: fundamental physics of the Galactic center
• Methods for detecting flaring structures in Sagittarius A* with high frequency VLBI
• The Event Horizon of Sagittarius A*
• Towards the event horizon -- the supermassive black hole in the Galactic Center
• Black Hole Shadows of Charged Spinning Black Holes
• Mirages around Kerr black holes and retro-gravitational lenses
• Gravitational Lensing by Spinning Black Holes in Astrophysics, and in the Movie Interstellar
• The variability of accretion onto Schwarzschild black holes from turbulent magnetized discs
• Astrophysics of Wormholes
• Analytical calculation of black hole spin using deformation of the shadow
• Modeling Seven Years of Event Horizon Telescope Observations with Radiatively Inefficient Accretion Flow Models
• The Event Horizon of M87
• Imaging an Event Horizon: Mitigation of Scattering Toward Sagittarius A*
• Black holes in the presence of dark energy
• Constraining the range of Yukawa gravity interaction from S2 star orbits
• Shadow of noncommutative geometry inspired black hole
• Testing General Relativity with Accretion-Flow Imaging of Sgr A*
• Event-Horizon-Telescope Evidence for Alignment of the Black Hole in the Center of the Milky Way with the Inner Stellar Disk
• Constraining the range of Yukawa gravity interaction from S2 star orbits II: Bounds on graviton mass
• New analytic models of traversable wormholes
• Kerr black hole parameters in terms of red/blue shifts of photons emitted by geodesic particles
• Masses of Nearby Supermassive Black Holes with Very-Long Baseline Interferometry
• Physical laboratory at the center of the Galaxy
• Relativistic orbits around spinning supermassive black holes. Secular evolution to 4.5 post-Newtonian order
• Constraints on $R^n$ gravity from precession of orbits of S2-like stars: a case of a bulk distribution of mass
• Estimating the parameters of the Sgr A* black hole
• Localizing Sagittarius A* and M87 on Microarcsecond Scales with Millimeter VLBI
• Constraining the distribution of dark matter at the Galactic centre using the high-resolution Event Horizon Telescope
• Unique probe of dark matter in the core of M87 with the Event Horizon Telescope
• Spin and mass of the nearest supermassive black hole
• Obtaining mass parameters of compact objects from red-blue shifts emitted by geodesic particles around them
• Black Holes in Higher Dimensional Gravity Theory with Quadratic in Curvature Corrections
• Weighing of the Dark Matter at the Center of the Galaxy
• Bayesian techniques for comparing time-dependent GRMHD simulations to variable Event Horizon Telescope observations
• Seeing the unseeable
• Relative Astrometry of Compact Flaring Structures in Sgr A* with Polarimetric VLBI
• Shadow of a dressed black hole and determination of spin and viewing angle
• Different Types of Fe K_αLines from Radiating Annuli near Black Holes
• Eclipsing light curves for accretion flows around a rotating black hole and atmospheric effects of the companion star
• Greenland Telescope Project --- Direct Confirmation of Black Hole with Sub-millimeter VLBI

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• Shadow of a black hole surrounded by dark matter
• Analytical representation for metrics of scalarized Einstein-Maxwell black holes and their shadows
• Shadow of a black hole at cosmological distance
• Targeted Sub-threshold Search for Strongly-lensed Gravitational-wave Events
• Silhouettes of invisible black holes
• Event horizon image within black hole shadow
• To see invisible: image of the event horizon within the black hole shadow
• Observing the Shadows of Stellar-Mass Black Holes with Binary Companions
• Mass and spin of Kerr black holes in terms of observational quantities: The dragging effect on the redshift
• Modeling the motion of a bright spot in jets from black holes M87* and SgrA*
• Physical origin of the dark spot at the image of supermassive black hole SgrA* revealed by the EHT collaboration
• An exact black hole spacetime with scalar field and its shadow together with quasinormal modes
• General relativistic formulas for mass and spin of a Kerr black hole in terms of redshifts and orbital parameters
• Generalized Einstein-Rosen bridge inside black holes
• Trajectories of light beams in a Kerr metric: the influence of the rotation of an observer on the shadow of a black hole
• Visible shapes of black holes M87* and SgrA*
• Observational Signatures of Kerr Black Hole Lensing