The Unified Model of AGN Suggests That Quasars, Seyfert Galaxies

question 69

Multiple Choice

The unified model of AGN suggests that quasars, Seyfert galaxies, and radio galaxies:

• A) are unrelated, although they are all very luminous galaxies at radio wavelengths
• B) are powered by similar mass accretion rates onto supermassive black holes
• C) are driven by violent mergers of two gas-rich spiral galaxies
• D) are similar phenomena but viewed from different orientation angles
• E) are all powered by high rates of star formation and supernova explosions

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