Back to the article index


Article Contents

ABSTRACT

1.INTRODUCTION

2.DYNAMICAL CONSEQUENCES OF SHORT-LIVED SPIRAL PATTERNS
2.1.The importance of gas
2.2.Age-velocity dispersion relation
2.3.Dispersion of stellar metallicities with age
2.4.Large-scale turbulence

3.MECHANISM FOR RECURRENT TRANSIENT SPIRALS

4.VELOCITY ELLIPSOID SHAPE
4.1.Idealized simulations
4.2.Results

REFERENCES