The brightest point in accretion disk and black hole spin: implication to the image of black hole M87*

Abstract

We propose the simple new method for extracting the value of the black hole spin from the direct high-resolution image of black hole by using a thin accretion disk model. In this model the observed dark region on the first image of the supermassive black hole in the galaxy M87, obtained by the Event Horizon Telescope, is a silhouette of the black hole event horizon. The outline of this silhouette is the equator of the event horizon sphere. The dark silhouette of the black hole event horizon is placed within the expected position of the black hole shadow, which is not revealed on the first image. We calculated numerically the relation between the observed position of the black hole silhouette and the brightest point in the thin accretion disk, depending on the black hole spin. From this relation we derive the spin of the supermassive black hole M87*, $a=0.75\pm 0.15$.

arXiv comment17 pages, 8 figures, published in Universe

References in corpus (38)

• 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
• 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
• Viewing the Shadow of the Black Hole at the Galactic Center
• First M87 Event Horizon Telescope Results. II. Array and Instrumentation
• First M87 Event Horizon Telescope Results. III. Data Processing and Calibration
• Black Hole Shadows, Photon Rings, and Lensing Rings
• Shadows and strong gravitational lensing: a brief review
• Testing the rotational nature of the supermassive object M87* from the circularity and size of its first image
• The Black-Hole Mass in M87 from Gemini/NIFS Adaptive Optics Observations
• Photon Regions and Shadows of Kerr-Newman-NUT Black Holes with a Cosmological Constant
• Testing the No-Hair Theorem with Observations in the Electromagnetic Spectrum: II. Black-Hole Images
• Twisting of light around rotating black holes
• The Structure and Dynamics of the Sub-parsec Scale Jet in M87 Based on 50 VLBA Observations Over 17 Years at 43 GHz
• Ultra Light Boson Dark Matter and Event Horizon Telescope Observations of M87*
• Imaging the Black Hole Silhouette of M87: Implications for Jet Formation and Black Hole Spin
• Photon Regions and Shadows of Accelerated Black Holes
• Measurement of the spin of the M87 black hole from its observed twisted light
• Millimeter Flares and VLBI Visibilities from Relativistic Simulations of Magnetized Accretion onto the Galactic Center Black Hole
• Mirages around Kerr black holes and retro-gravitational lenses
• Does the black hole shadow probe the event horizon geometry?
• Line Emission from an Accretion Disk around a Rotating Black Hole: Toward a Measurement of Frame Dragging
• Observational Signature of High Spin at the Event Horizon Telescope
• Revisiting the shadow of a black hole in the presence of a plasma
• Particle on the Innermost Stable Circular Orbit of a Rapidly Spinning Black Hole
• Constraining spins of supermassive black holes from TeV variability. II. fully general relativistic calculations
• Imaging an Event Horizon: Mitigation of Source Variability of Sagittarius A*
• Transient Instability of Rapidly Rotating Black Holes
• Photon Emission Near Extreme Kerr Black Holes
• M87 black hole mass and spin estimate through the position of the jet boundary shape break
• Near-horizon Kerr Magnetosphere
• Constraint on the black-hole spin of M87 from the accretion-jet model
• The Spin of M87*
• Event horizon image within black hole shadow
• To see invisible: image of the event horizon within the black hole shadow
• Event horizon silhouette: implications to supermassive black holes M87* and SgrA*
• Black hole spin from wobbling and rotation of the M87 jet and a sign of a magnetically arrested disc

Cited by in corpus (23)

• Magnetically charged black holes from non-linear electrodynamics and the Event Horizon Telescope
• Concerns regarding the use of black hole shadows as standard rulers
• Photon Ring and Observational Appearance of a Hairy Black Hole
• QED Effect on Black Hole Shadow
• Testing the Schwarzschild metric in a strong field region with the Event Horizon Telescope
• The shadow of M87* black hole within rational nonlinear electrodynamics
• Images from disk and spherical accretions of hairy Schwarzschild black holes
• Accretion disk luminosity for black holes surrounded by dark matter with tangential pressure
• Observational signature of a near-extremal Kerr-Sen black hole in the heterotic string theory
• Silhouettes of invisible black holes
• Images of hairy Reissner-Nordström black hole illuminated by static accretions
• Observational Appearances of Magnetically Charged Black Holes in Born-Infeld Electrodynamics
• Spin of primordial black holes in the model with collapsing domain walls
• Orientation of the crescent image of M 87*
• Modeling the motion of a bright spot in jets from black holes M87* and SgrA*
• New estimates of the spin and accretion rate of the black hole M87*
• Physical origin of the dark spot at the image of supermassive black hole SgrA* revealed by the EHT collaboration
• Estimating the spin of the black hole candidate MAXI J1659-152 with the X-ray continuum-fitting method
• Black holes in $f(R,T)$ gravity coupled with Euler-Heisenberg electrodynamics
• Geodesic dynamics and multi-inclination images of a non-minimally coupled black hole with a thin accretion disk
• Visible shapes of black holes M87* and SgrA*
• Images of black holes viewed by distant observer
• Generalized Einstein-Rosen bridge inside black holes