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Article Contents

ABSTRACT

1.INTRODUCTION

1.1.The dynamic universe

1.2.Geometry and destiny

1.3.Acceleration

1.4.Revolution in physics

2.EFFECTS OF ACCELERATED EXPANSION

2.1.Acceleration directly?

2.2.Kinematics

2.3.Dynamics

2.4.True acceleration?

2.5.Fate of the universe

3.DISTANCE MEASURES

3.1.General cosmological distance properties

3.2.Type Ia supernovae

3.3.Cosmic microwave background

3.4.Baryon acoustic oscillations

3.5.Other methods

3.6.Summary of mapping techniques

4.GROWTH AND EXPANSION

4.1.Growth of density perturbations

4.2.Abundance tests

4.3.Gravitational lensing

4.4.Testing gravity

4.4.1.First steps

4.4.2.Problems parametrizing beyond-Einstein gravity

4.4.3.Levels of discovery

5.SYSTEMATICS IN DATA AND THEORY

5.1.Parameterizing dark energy

5.2.Mirage of Lambda

5.3.Inhomogeneous data sets

5.4.Miscalibrated standard

5.5.Malmquist bias

5.6.Other issues

6.FUTURE PROSPECTS

6.1.Data and systematics

6.2.Mapping resolution

6.3.Limits on cosmic doomsday

7.CONCLUSIONS

REFERENCES