The «active» part of the galaxy is the supermassive black hole in its core, which spews out strong jets of energetic particles that produce enormous
lobes of radio emission.
Not exact matches
In addition, «
lobes»
of bright
radio emission were pushed outward by the jets at about half the speed
of light.
The
radio emission comes from the core AND from very large regions on either side
of the optical part
of the galaxy called «
radio lobes».