Mapping Neutral Hydrogen in External Galaxies - M.C.H. Wright

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Article Contents

TITLE PAGE
11.1.INTRODUCTION
11.1.1.Hydrogen Distribution and Kinematics
11.1.2.Classification Systems
11.2.INTEGRAL PROPERTIES OF GALAXIES
11.2.1.The Data
11.2.2.Correlations
11.3.MAPPING HI IN GALAXIES
11.3.1.Density Distribution
11.3.2.Velocity Distribution
11.4.OBSERVATIONS WITH A SINGLE DISH
11.4.1.Observing Procedure
11.4.2.Magellanic Clouds
11.4.3.Nearby Spiral Galaxies
11.4.4.Galaxies with Smaller Angular Diameters
11.4.5.Model Fitting
11.5.INTERFEROMETRIC OBSERVATIONS
11.5.1.Position Profiles
11.5.2.Observations of External Galaxies
11.5.3.Interpretation of the Data
11.6.APERTURE SYNTHESIS OBSERVATIONS
11.6.1.Observational Requirements
11.6.2.Correlation Receivers
11.6.3.Data Reduction

11.7.HIGH-RESOLUTION MAPS

11.7.1.Observations of M33 with the Cambridge Half-Mile Telescope

11.7.2.Observations at the Owens Valley Radio Observatory

11.7.3.Comparison of the HI Distributions of Late-Type Galaxies

11.7.4.Central Hydrogen Depressions

11.7.5.Rate of Star Formation

11.8.CONCLUSIONS