27: Active Galaxies, Quasars, and Supermassive Black Holes

Question 1

galaxies that are almost as luminous as quasars and share many of their properties, although to a less spectacular degree; abnormal amounts of energy are produced in their centers

Answer 1

active galactic nuclei (AGN)

Question 2

galaxies that house active galactic nuclei

Answer 2

active galaxies

Question 3

an object of very high redshift that looks like a star but is extragalactic and highly luminous - also called a quasi-stellar object, or QSO

Answer 3

quasar