Global uniqueness of Kerr black hole spin and inclination from a segment of the critical curve

arXiv:2608.24635 · gr-qc, astro-ph.HE · Submitted 2026-08-25 · Read on arXiv

gr-qc, astro-ph.HE

Submitted: 2026-08-25

Updated: 2026-08-25

Terminology

Trace — 3× in this paper · explained in 2 episodes
Degeneracy — 2× in this paper · explained in 3 episodes

Sources

First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way
Black Hole Shadows, Photon Rings, and Lensing Rings
Universal Interferometric Signatures of a Black Hole's Photon Ring
The Japanese Vision for the Black Hole Explorer Mission
The Black Hole Explorer: Motivation and Vision
The Black Hole Explorer: Photon Ring Science, Detection and Shape Measurement
Hidden symmetries, null geodesics, and photon capture in the Sen black hole
Measurement of the Kerr Spin Parameter by Observation of a Compact Object's Shadow
Determining parameters of Kerr black holes at finite distance by shadow observation
Determining parameters of a spherical black hole with a thin accretion disk by observing its shadow
Constraining the spin and the deformation parameters from the black hole shadow
A coordinate-independent characterization of a black hole shadow
Constraints on the black-hole charges of M87* and Sagittarius A* by changing rates of photon spheres can be relaxed
Constraints on black-hole charges with the 2017 EHT observations of M87*
The Fingerprints of Black Holes - Shadows and their Degeneracies
Determining parameters of Kerr-Newman black holes by shadow observation from finite distance and spatial infinity
Determining Kerr black hole spin and inclination from a segment of the critical curve in black hole images
Does the shape of the shadow of a black hole depend on motional status of an observer?
Observational Signature of High Spin at the Event Horizon Telescope

Related papers