Annu. Rev. Astron. Astrophys. 1984. 22: 37-74
Copyright © 1984 by . All rights reserved

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


STRUCTURE AND EVOLUTION OF IRREGULAR GALAXIES

John S. Gallagher, III1,2


Department of Astronomy, University of Illinois, Urbana, Illinois 61801

Deidre A. Hunter


Kitt Peak National Observatory 3, Tucson, Arizona 85726


Table of Contents

INTRODUCTION

BASIC PROPERTIES
Light
Masses and Kinematics
Abundances
Stellar Populations

STAR FORMATION PROPERTIES
Current Global Star Formation Rates
Distributions of Star-Forming Regions
Star_forming Complexes and the Interstellar Medium
The Initial Mass Function
Usable Gas

STAR-FORMING HISTORIES
Constant Star Formation Rates
Bursts of Star Formation
SSPSF: A Possible Model

EVOLUTIONARY STATUS

REFERENCES



1 Supported in part by the National Science Foundation through grant AST 82-14127.
2 Now at Kitt Peak National Observatory.
3 Operated by Association of Universities for Research in Astronomy, Inc. under contract from the National Science Foundation.

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