1. A GP is purely star-forming, rather than having an Active galactic nucleus . 2. NGC 4762 contains a Liner-type active galactic nucleus , a highly energetic central region. 3. A hard X-ray source at the center most likely indicates an active galactic nucleus . 4. Discovered in 1977, and therefore hosts an active galactic nucleus . 5. The image shows a model of an active galactic nucleus . 6. The study does not include any spectroscopic discrimination between the stellar and active galactic nucleus component. 7. It is the result of a merger between two disk galaxies, resulting in a recent galactic nucleus . 8. It has the X-ray emission and it has an active galactic nucleus of the Seyfert 2 type. 9. "' NGC 5750 "'is a barred spiral galaxy with an active galactic nucleus in the constellation Virgo. 10. If it has an active galactic nucleus , this may reduce the mass estimate to half the current value.
