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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Modeling of Sgr A* shows Faraday conversion dominates circular polarization in radial, parabolic, quadrupole and combined magnetic fields while intrinsic emission dominates in dipole and vertical fields, allowing exclusion of reversed-field models at high inclinations using ALMA observations.
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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.
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Circular polarization images of Sgr A* for different magnetic field geometries
Modeling of Sgr A* shows Faraday conversion dominates circular polarization in radial, parabolic, quadrupole and combined magnetic fields while intrinsic emission dominates in dipole and vertical fields, allowing exclusion of reversed-field models at high inclinations using ALMA observations.