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Article Contents

ABSTRACT

1.INTRODUCTION

2.OBSERVATIONS

2.1.Census

2.2.Stellar Structure

2.2.1.‘Classical ’ dSphs

2.2.2.Ultrafaint dSphs

2.2.3.Extended Structure

2.2.4.Structural Peculiarities of Individual dSphs

2.3. Stellar Velocities

2.3.1.Small-Number Statistics

2.3.2.Confirmation

2.3.3. Large Samples

2.3.4.(Necessarily) Small Samples

2.4.The Smallest Galaxies

3.STELLAR VELOCITY DISPERSION AS A PROXY FOR MASS

3.1.Rotation

3.2.External Tides

3.3.Binary Stars

4.dSph MASSES

4.1.Amount

4.1.1.‘Mass Follows Light’ Models

4.1.2.Does Mass Follow Light?

4.1.3.Jeans Analysis

4.2.Distribution

4.2.1.Indirect Constraints

4.2.2. Constraints from Models

4.2.3.Direct Measurement

5.A COMMON dSph MASS?

6.IMPLICATIONS FOR COSMOLOGY AND PARTICLE PHYSICS

6.1.Cosmology

6.2.Particle Physics

7.SOME CONSIDERATIONS FOR FUTURE WORK

REFERENCES