Annu. Rev. Astron. Astrophys. 1982. 20: 517-45
Copyright © 1982 by . All rights reserved

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


MOLECULAR CLOUDS IN GALAXIES

Mark Morris


Astronomy Department, Columbia University, New York, New York 10027

L. J. Rickard


Department of Physics and Astronomy, Howard University, Washington, DC 20059


Table of Contents

INTRODUCTION

GALAXIES WITH ABUNDANT MOLECULAR GAS
OH Absorption Surveys
CO Emission Surveys

THE DISTRIBUTION OF MOLECULAR MATERIAL WITHIN GALAXIES
Maps of Carbon Monoxide Emission
A Classification Scheme

MOLECULAR CLOUDS IN THE CENTRAL REGIONS OF GALAXIES
Is There a Distinct Central Concentration of Molecular Clouds?
Optically Thin CO
OH Absorption-Line Anomalies
Correlations of Molecular Sources with Nuclear Activity
Seyfert Galaxies

MOLECULAR CLOUDS IN GALACTIC DISKS
Spiral Arms, Bars, and Giant Complexes
Interrelations of Far-Infrared, Nonthermal Continuum, and CO Emission
Implications for Star Formation
NGC 5128 - A Special Case

EXTRAGALACTIC CHEMISTRY

EXTRAGALACTIC MASERS

PERSPECTIVES

REFERENCES

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