Micro-arcsecond structure of Sagittarius A* revealed by high-sensitivity 86 GHz VLBI observations

Christiaan D. Brinkerink, Cornelia Müller, Heino D. Falcke +21

The compact radio source Sagittarius~A${}^{\ast }$ (Sgr~A${}^{\ast }$)in the Galactic Center is the primary supermassive black hole candidate. General relativistic magnetohydrodynamical (GRMHD) si…