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Article Contents

TITLE PAGE

CHAPTER 1. INTRODUCTION

References

CHAPTER 2. OBSERVATIONAL MATERIAL

References

CHAPTER 3. REDUCTION METHODS

1. Observing procedure

2. Problems associated with the telescope configuration

3. Profile handling

4. Spatial resolution effects

References

CHAPTER 4. STUDIES OF INDIVIDUAL GALAXIES

1. A Neutral Hydrogen Study of the Spiral Galaxy NGC 4736

References

2. A 21-cm Study of the Seyfert Galaxy NGC 4151

References

3. A 21-cm Study of the Galaxy NGC 5033

References

4. A 21-cm Study of the Galaxy NGC 3198

References

5. A 21-cm Study of the Galaxy NGC 5055

References

6. A 21-cm Study of the Galaxy NGC 2841

References

7. A 21-cm Study of the Galaxy NGC 7331

References

Chapter 5. DESCRIPTION OF TWO-DIMENSIONAL MAPS OF SPIRAL GALAXIES

l. Introduction

2. The main types of non-circular motions

3. Motions associated with individual spiral arms

4. Large scale symmetric deviations: oval distortions

5. Large scale symmetric deviations: kinematical warps

6. Large scale asymmetries

7. Small scale asymmetries

8. Concluding remarks

References

Chapter 6. ROTATION CURVES AND MASS MODELS

1. Introduction

2. Rotation curves

3. Mass models

4. Results: V(R), _M(R), M(R)

5. Discussion

References

Chapter 7. DISCUSSION

1. Introduction

2. The mass and size of galaxies

3. The mass-to-luminosity ratio

4. The total mass to HI gas mass ratio

5. The extent of the HI distribution

6. The relationship with morphological types

References

Chapter 8. SYNOPSIS, SUGGESTIONS FOR FUTURE WORK