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Article Contents

ABSTRACT

1.HISTORICAL INTRODUCTION

2.THE PHENOMENOLOGICAL MODEL

2.1.Phenomenology of an Extended Radio Source

2.2.Jets and Unified Models for Active Galactic Nuclei

3.ORIGIN OF JETS: THE BLACK HOLE CONNECTION

3.1.Collimated Outflows from Accretion Disks

3.2.Electromagnetic Winds from Black Hole/Disk Magnetospheres

3.3.Nonlinear Ejection Models

3.4.Observable Quantities

4.JET CONFINEMENT: THE INTERACTION WITH THE AMBIENT MEDIUM

4.1.Global Dynamics of Confined Jets

4.2.Global Electrodynamics of Confined Jets

4.3.Jet Instabilities

4.4.Nonlinear Evolution of Jet Dynamics

4.5.Astrophysical Applications and Comments

5.JET TERMINATION: THE COCOON

5.1.Hot Spots

5.2.Extended Lobes

5.3.Filaments

5.4.Numerical Models of Jet's Head Evolution

5.5.Understanding Jet Microphysics

6.RADIATION AND PARTICLE ACCELERATION IN LARGE-SCALE JETS

6.1.Evolution of the Relativistic Electron Distribution Function

6.2.Comments: Beaming Effects in Relativistic Outflows

6.3.Acceleration of Cosmic Rays in Extragalactic Radio Sources

7.OPEN PROBLEMS

REFERENCES