Model for Seyfert Galaxies
Supermassive
black hole
Accretion disk
dense dust torus
Gas clouds
Seyfert I:
Strong, broad emission
lines from rapidly
moving gas clouds near
the black hole
Seyfert II:
Weaker, narrow
emission lines
from more slowly
moving gas clouds
far from the black
hole
UV, X-rays
Emission lines
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