Active Galactic Nuclei. A galaxy which emits a huge amount of energy from a compact central source. Active Galactic Nuclei

Active Galactic Nuclei. The central regions of some galaxies that appear as point-like sources of radiation. Believed to be supermassive black hole s accreting nearby matter.

Active Galactic Nuclei. a core region in certain galaxies that, like a powerful engine, spews large amounts of energy from its center.

active galactic nuclei. The centers of active galaxies that are emitting large amounts of excess energy.

Active Galactic Nuclei. A galaxy with an unusually bright central region thought to contain a supermassive black hole actively pulling in tremendous amounts of matter from a swirling disk of gas, stars, and dust.

Active galactic nuclei. A class of galaxies that expell massive amounts of energy from their centers, far more than ordinary galaxies. Many astronomers believe supermassive black holes may lie at the center of these galaxies and power their explosive energy output.

Active Galactic Nucleus

active galactic nuclei. the tiny central engine (likely a supermassive black hole) that drives the active galaxy phenomenon

Active Galaxy Nucleus. The central energy source of an active galaxy