EHT data show a 51.8 microarcsecond ring around Sgr A* consistent with the shadow of a 4 million solar mass Kerr black hole viewed at moderate inclination.
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4 Pith papers cite this work. Polarity classification is still indexing.
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A black hole in a Kalb-Ramond field coupled to perfect fluid dark matter has modified photon orbits and quasinormal mode frequencies and damping rates that depend on the Lorentz-violating parameter alpha and dark matter parameter lambda.
Increasing enclosed dark matter normalization lowers the flip frequency relative to Kerr while more extended DM profiles weaken the response in the effective response model.
EHT angular diameter data yield upper bounds on the holonomy correction b (e.g., b ≤ 0.1319M at a=0 for M87*) showing nonzero b remains consistent with observations for RHCBH spacetimes.
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First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way
EHT data show a 51.8 microarcsecond ring around Sgr A* consistent with the shadow of a 4 million solar mass Kerr black hole viewed at moderate inclination.