Black holes and their event horizon environments are plasma torus shaped, or, are these objects just toroidal plasma phenomena and structures?
The image shows an intensely bright "ring of fire", as Prof Falcke describes it, surrounding a perfectly circular dark hole. The bright halo is caused by superheated gas falling into the hole. The light is brighter than all the billions of other stars in the galaxy combined - which is why it can be seen at such distance from Earth.
The edge of the dark circle at the centre is the point at which the gas enters the black hole, which is an object that has such a large gravitational pull, not even light can escape.
First ever black hole image released
Plasmoids, discs that are formed, powered and shaped by natural plasma physics?
Black holes shaped like electromagnetic plasmoid torus?
Perhaps a plasma variation of a Faraday homopolar generator, Faraday disk? Black holes do not exist.