The AGN “Zoo”
•Quasars (M
< -23)
–Radio-Loud
•FR II
Radio Galaxies (type 2 quasars)
•Radio-loud
Quasars or just Quasars (type 1 quasars)
–Optically
violent variables (OVVs)
–Radio-Quiet
•QSOs –
type 1 (broad lines) and type 2 (only narrow lines)
–Infrared-Loud
– IRAS quasars, Far-IR Galaxies, ULIRGs
•Low
Luminosity AGNs (M > -23)
–Radio-Loud
•FR I Radio
Galaxies
•Bl Lac
objects, AKA Blazars
–Radio-Quiet
•Seyfert
Galaxies – type 1 through type 2 (see QSOs)
•LINERs
(Low ionization nuclear emission-line regions)
•Shields “A Brief
History of AGN” astro-ph/9903401
