Annu. Rev. Astron. Astrophys. 1990. 28: 37-70
Copyright © 1990 by . All rights reserved

Reprinted with kind permission from , 4139 El Camino Way, Palo Alto, California, USA


INTERSTELLAR DUST AND EXTINCTION

John S. Mathis

Washburn Observatory, University of Wisconsin-Madison,
475 N. Charter St., Madison, Wisconsin 53706


KEY WORDS: interstellar medium, molecular clouds, interstellar grains


Table of Contents

INTRODUCTION

INTERSTELLAR EXTINCTION
Continuous Extinction
Optical Ultraviolet Extinction of Diffuse Dust and Outer-Cloud Dust
The 2175-Å ``Bump''
NIR Continuous Extinction
The 9.7- and 18-µm Silicate Features
Mean Extinction Laws

EMISSION FROM DUST
The Unidentified Infrared Bands
Continuum Emission

SCATTERING FROM DUST

POLARIZATION
Continuum Polarization
Polarization in Spectral Features

OTHER DIAGNOSTICS OF INTERSTELLAR DUST
Depletions in Interstellar Gas
Sites of Dust Formation
Solar System Dust

EVOLUTION OF DUST

SOME THEORIES, AND PROBLEMS WITH EACH

SUMMARY

APPENDIX

REFERENCES

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