3C 84 Centaurus A GeV ?-rays TeV ?-rays TeV emission VLBA X-rays: binaries active galactic nuclei active galactic nucleus discrete correlation function emission: non-thermal galaxies: active galaxies: jets gamma-rays gamma-rays: observation gamma-rays: theory general relativity jets light curve magnetohydrodynamics origin: black hole origin: jet particle acceleration radiation mechanisms: non-thermal radio galaxies radio galaxy radio interferometry relativistic processes ISM: jets and outflows stars: black holes