broad-line region


Also found in: Acronyms.

broad-line region

(BLR) See quasar.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
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Type II Seyfert galaxies like M77 show only narrow line emissions because they're tilted farther from our line of sight, hiding the broad-line region. The orientation of their AGN seems to make all the difference.
The broad-line region is situated close to the black hole and accretion disk, while the narrow-line region is farther out along the cone of the jet.
Spotlight on a Seyfert: The author takes a close look at the nearest and brightest Seyfert galaxy through a 48-inch telescope

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