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Article Contents

ABSTRACT

1.INTRODUCTION: From IRAS to ISO

2.NORMAL GALAXIES

2.1.Infrared Emission from Normal Galaxies

2.1.1.Mid-Infrared Emission: Unidentified Bands and Very Small Dust Grains

2.1.2.Far-IR Emission: Cold Dust and Galactic Extinction

2.2.Dark Matter in the Halos and Outer Parts of Disks

2.3.Early-Type Galaxies

3.ACTIVE GALAXIES

3.1.Analytical Spectroscopy and Spectrophotometry

3.1.1.Molecular Spectroscopy

3.1.2.Distinguishing AGNs and Starbursts: ISO Diagnostic Diagrams

3.2.Starburst Galaxies

3.2.1.The Dark Side of Star Formation

3.2.2.Properties and Evolution of Starbursts

3.2.3.The [CII] Line as Global Tracer of Star Formation Activity in Galaxies

3.3.Seyfert Galaxies and QSOs

3.3.1.UIB Features in Seyfert Galaxies: Confirmation of Unified Models

3.3.2.The Source of Far-Infrared Luminosity in Seyfert Galaxies and QSOs

3.3.3.Re-constructing the Big Blue (EUV) Bump

3.4.The Nature of Ultra-Luminous Infrared Galaxies

3.4.1.Signature for AGN versus Starburst Activity: The ISO Diagnostic Diagram

3.4.2.ULIRGs as a Class: The Starburst-AGN Connection

3.4.3.Hidden AGNs: The Role of Dust Obscuration in ULIRGs

3.4.4.Properties and Evolution of Star Formation in ULIRGs

3.4.5.Warm ULIRGs and QSOs

4.THE DISTANT UNIVERSE

4.1.Mid-Infrared Surveys

4.1.1.Source Counts: Evidence for Strong Evolution

4.1.2.Nature of ISOCAM Sources: Luminous Star-Forming Galaxies at z ~ 0.7

4.2.Far-Infrared Surveys

4.3.Star Formation at High Redshift: A Synthesis

5.CONCLUSIONS AND OUTLOOK

REFERENCES