Seyfert Galaxies

Multiple Choice

Seyfert galaxies

A) are more common in close pairs of galaxies than in isolated systems.
B) emit more energy at X-ray, ultraviolet, infrared, or radio wavelengths than normal spiral galaxies.
C) generally show redshifts greater than 6.
D) are more common in close pairs of galaxies than in isolated systems and emit more energy at X-ray, ultraviolet, infrared, or radio wavelengths than normal spiral galaxies.
E) are more common in close pairs of galaxies than in isolated systems; emit more energy at X-ray, ultraviolet, infrared, or radio wavelengths than normal spiral galaxies; and generally show redshifts greater than 6.