In the unified model of active galactic nuclei,what is the broad line region in an active galactic nucleus?
A)It is composed of clouds of gas and stars moving at very high orbital velocities near a supermassive black hole.
B)It is composed of a super massive black hole surrounded by empty space.
C)It is the region responsible for producing the bright continuous radiation from within the event horizon.
D)It is the region responsible for the narrow absorption lines seen in Type 2 Seyfert galaxies.

Question

Quizplus · Accepted Answer

The broad line region in an active galactic nucleus is composed of clouds of gas and stars moving at very high orbital velocities near a supermassive black hole. These clouds are responsible for producing the broad emission lines seen in Type 1 Seyfert galaxies and quasars.

In the Unified Model of Active Galactic Nuclei,what Is the Broad