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Article Contents

TITLE PAGE

3.THEORETICAL MODELS

3.1.The BLR and the NLR

3.2.Photoionization Models

3.3.Other Models

3.4.Bibliography

4.PHOTOIONIZATION MODELS FOR ISOLATED CLOUDS

4.1.Photoionization equilibrium

4.2.Thermal Equilibrium

4.3.Additional Heating and Ionization Processes

4.4.Radiative Transfer

4.5.The Emergent Spectrum

4.6.Bibliography

5.PHOTOIONIZATION MODELS FOR A SYSTEM OF CLOUDS

5.1.Spherical BLR Models

5.2.Non-spherical Models

5.3.Bibliography

6.COMPARISON WITH THE OBSERVATIONS

6.1.The Broad Line Region

6.2.The Narrow Line Region

6.3.The Energy Budget of the BLR

6.4.Bibliography

7.DUST AND REDDENING

7.1.Thermal Emission and Polarization

7.2.Internal and External Dust

7.3.Dust and Reddening in the NLR

7.4.Dust and Reddening in the BLR

7.5.Continuum Reddening

7.6.Bibliography

8.LINE AND CONTINUUM VARIABILITY: MAPPING THE BLR

8.1.Line and Continuum Light Curves

8.2.Cross Correlation

8.3.The Transfer Function

8.4.Light Curve Modeling

8.5.The BLR Size

8.6.Anisotropic Emission and Beaming

8.7.Bibliography

9.GAS MOTION AND DYNAMICS

9.1.Confined Cloud Models

9.2.Other Models

9.3.Observed Line Profiles

9.4.Theoretical Line Profiles

9.5.Cross-correlation Tests

9.6.Bibliography

10.LINE AND CONTINUUM CORRELATIONS

10.1.Line Intensity vs. Continuum Luminosity

10.2.Line - Line Correlations

10.3.Line Width vs. Continuum Luminosity: M/L for AGNs

10.4.The Baldwin Relationship

10.5.AGN Accretion Disks

11.QUASARS, MINIQUASARS AND MICROQUASARS

11.1Narrow Line X-ray Galaxies

11.2.Seyfert 2 Galaxies

11.3.LINERs

11.4.AGN Classification: QI, QII and QIII

11.5.Bibliography

REFERENCES

LIST OF SYMBOLS