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15 : ACTIVE GALACTIC NUCLEI
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(1) Introduction
      (a) Operational Definition of AGN
      (b) Reasons for Studying AGN
(2) Brief Historical Sketch
      (a) Early Optical Spectroscopy
      (b) Early Radio Observations
      (c) Quasar Discovery
      (d) The Redshift Controversy
(3) The AGN Paradigm
(4) AGN Taxonomy
      (a) Four Basic Criteria
      (b) Taxonomic Table
      (c) Mixed Classifications
      (d) Emission Line Classification
(5) AGN Detection and Identification
      (a) Radio Surveys
      (b) Optical Colors
            (i)   Single Color
            (ii)  Multi-color
      (c) Slitless Spectroscopy
            (i)   Markarian Survey
            (ii)  Other Slitless Surveys
      (d) Emission Lines
      (e) Infra-Red
      (f) X-ray & Gamma-ray
      (g) Variability & Proper Motion
(6) AGN Demographics
      (a) Frequency of AGN in the Local Galaxy Population
      (b) AGN Preference for Big Bulges
      (c) Higher Luminosities
(7) AGN Unified Schemes
      (a) Two Different Angle-Dependent Phenomena
      (b) Seyfert 2s / Seyfert 1s
            (i)   NLR/ENLR Shapes
            (ii)  NLR vs Nuclear Luminosity Comparison
            (iii) Q(nuc) from NLR Radiation Paramater
            (iv) Periscopic (Polarazation) View of the Nucleus
            (v)  Nuclear Absorption: X-ray Spectra
            (vi) Nuclear Absorption: Molecular Masers
            (vii) Opening Angle
            (viii) Do All Seyfert 2s have Seyfert 1 Nuclei?
      (c) NLRGs / BLRGs
      (d) Radio Loud: PRG-II / LD-QSR / CD-QSR
      (e) RG-I / BL-Lacs : straight down the beam
      (f) Intrinsic Differences: Luminosity & Radio Loudness
(8) Black Holes and Accretion Disks
      (a) Simple Black Hole Physics
            (i)   Newtonian Point Mass Potential
            (ii)  Schwarzschild (Non-Rotating) Potential
            (iii) Rotating Black Holes
            (iv) Extracting Rotational Energy?
            (v)  Black Hole Tidal Forces
            (vi) The Eddington Luminosity & Growth Rate
      (b) Inevitability of Black Hole Formation
      (c) Simple Accretion Disk Physics
(9) Continuum SEDs
(10) Emission Line and Ionized Cloud Physics
(11) The Broad Line Region
(12) The Narrow Line Region
(13) Intrinsic Absorption Lines
(14) AGN Radio Properties : Cores, Jets, Lobes
(15) AGN Host Galaxies and Environment
(16) AGN Evolution