Rotating black holes dressed with cored-NFW dark matter produce larger image shifts, brightness asymmetries, and ring-scale changes than Kerr or Einasto-dressed cases, with partial degeneracy to spin and inclination.
First Sagittarius A* Event Horizon Telescope Results. VI. Testing the Black Hole Metric
7 Pith papers cite this work. Polarity classification is still indexing.
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A thermodynamic-optical duality reparameterizes black hole mass via observable shadow radius to derive lensing angles, Hawking temperature, and luminosity for Kerr, Kerr-MOG, and rotating Horndeski metrics, yielding model-specific signatures under EHT constraints including up to 52% deviation in Hor
Three distinct non-minimal curvature-EM couplings produce different enlargements or reductions of black hole shadows and alter photon ring separations in characteristic ways.
Corotating point sources on accretion disks near black holes distort the relative magnification factor distribution, modulating caustics and encoding accretion flow kinematics via time-delayed images.
In Kruglov nonlinear electrodynamics, small positive values of the parameter q produce stable photon orbits outside the event horizon and modify black hole shadows and relativistic images even when the spacetime metric stays close to Reissner-Nordström.
Nonlocal black holes remain consistent with general relativity at the 1.13-sigma level after joint lensing and quasinormal-mode constraints.
citing papers explorer
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Adaptive ray tracing, image diagnostics, and photon ring signatures of rotating dark-matter-dressed black holes
Rotating black holes dressed with cored-NFW dark matter produce larger image shifts, brightness asymmetries, and ring-scale changes than Kerr or Einasto-dressed cases, with partial degeneracy to spin and inclination.
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Shadow dependent phenomenology framework for rotating black hole metric
A thermodynamic-optical duality reparameterizes black hole mass via observable shadow radius to derive lensing angles, Hawking temperature, and luminosity for Kerr, Kerr-MOG, and rotating Horndeski metrics, yielding model-specific signatures under EHT constraints including up to 52% deviation in Hor
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Photon rings and shadows of black holes with non-minimal couplings between curvature and electromagnetic field
Three distinct non-minimal curvature-EM couplings produce different enlargements or reductions of black hole shadows and alter photon ring separations in characteristic ways.
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Relative Magnification Factor of Point Sources on Accretion Disks
Corotating point sources on accretion disks near black holes distort the relative magnification factor distribution, modulating caustics and encoding accretion flow kinematics via time-delayed images.
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Effective null geodesics and black hole images in Kruglov nonlinear electrodynamics
In Kruglov nonlinear electrodynamics, small positive values of the parameter q produce stable photon orbits outside the event horizon and modify black hole shadows and relativistic images even when the spacetime metric stays close to Reissner-Nordström.
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Observational constraints on nonlocal black holes via gravitational lensing
Nonlocal black holes remain consistent with general relativity at the 1.13-sigma level after joint lensing and quasinormal-mode constraints.
- The Science of the Einstein Telescope