Reprinted with kind permission from , 4139 El
Camino Way, Palo Alto, California, USA
MOLECULAR GAS IN GALAXIES
J.S. Young
Department of
Physics and Astronomy and
Five
College Radio
Astronomy Observatory,
University of
Massachusetts, Amherst,
Massachusetts 01003
N.Z. Scoville
Astronomy
Department, California Institute of Technology 105-24,
Pasadena, California 91125
Key Words: star formation, Hubble sequence, galaxy evolution,
interstellar medium
Table of Contents
INTRODUCTION
- MOLECULAR MASS DETERMINATIONS
- Theoretical Basis
- Empirical Basis
- RADIAL DISTRIBUTIONS IN SPIRAL GALAXIES
- Unbarred Spiral Galaxies
- Barred Spiral Galaxies
- 13CO Observations of Galaxies
- SPIRAL STRUCTURE IN M51
- LOCAL GROUP GALAXIES
- GLOBAL H2, HI, AND IR IN GALAXIES
- Total H2 Masses
- Ratio of H2 to HI
- Gas Mass Fractions in Spiral Galaxies
- The Gas-to-Dust Ratio in Spiral Galaxies
- CO-IR Luminosity Correlation
- STAR FORMATION RATES AND EFFICIENCIES IN GALAXIES
- The Star Formation Efficiency in the Disks of NGC
6946 and M51
- Arm-Interarm Variations
- GALACTIC INTERACTIONS
- Star Formation Efficiencies
- Interaction Morphology
- GALACTIC NUCLEI
- M82
- NGC 1068
- Ultraluminous Infrared Galaxies
- Quasars
- CONCLUSIONS
- REFERENCES
