Signatures of Black Hole Spin in Horizon-Scale Polarimetry

arXiv:2607.14218 · astro-ph.HE · Submitted 2026-07-15 · Read on arXiv

George N. Wong, Daniel C. M. Palumbo, Zachary Gelles, Andrew Chael

astro-ph.HE

Submitted: 2026-07-15

Comments: 33 pages, 8 figures. prepared for a Galaxies special issue on black hole spin

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Event Horizon Telescope — 41× in this paper
• Accretion Flows — 15× in this paper · explained in 1 episode
• Calibration — 11× in this paper · explained in 7 episodes
• Alignment — 3× in this paper · explained in 1 episode
• AGN — 2× in this paper · explained in 1 episode
• Adam — 2× in this paper · explained in 2 episodes
• Consistency — 2× in this paper · explained in 3 episodes
• Core — 2× in this paper · explained in 2 episodes
• Trace — 2× in this paper · explained in 2 episodes
• pulsar timing arrays — 1× in this paper · explained in 2 episodes

Sources

• Stationary Black Holes: Uniqueness and Beyond
• The first decade of gravitational-wave measurements of black hole spins
• Polarization Signatures from GRMHD Simulations of Black Hole Accretion
• Black Hole Polarimetry: Universal Polarization of Synchrotron Radiation at the Horizon
• The Black Hole Explorer: Motivation and Vision
• A Beginner's Guide to Black Hole Imaging and Associated Tests of General Relativity
• Circular polarization images of Sgr A* for different magnetic field geometries

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