The first is indeed an accretion disk, the second, should be a quasar. Which is the same as a GRB, but for black holes, If I'm right, the Gamma Ray Burst is the moment a VERY large star collapses into a black hole, and emits lots of gamma rays during the process.
I'm probebly wrong on the quasar part; it has another name when particles, instead of electromagnetic waves are emited.