Annu. Rev. Astron. Astrophys. 1992. 30: 499-542
Copyright © 1992 by . All rights reserved

Reprinted with kind permission from , 4139 El Camino Way, Palo Alto, California, USA


THE COSMOLOGICAL CONSTANT

Sean M. Carroll and William H. Press


Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138

Edwin L. Turner


Princeton University Observatory, Princeton, New Jersey 08544


Key Words: general relativity, vacuum energy, age of universe, galaxy counts, gravitational lenses


Table of Contents

INTRODUCTION

WHY A COSMOLOGICAL CONSTANT SEEMS INEVITABLE

EFFECTS OF A NON-ZERO COSMOLOGICAL CONSTANT
Expansion Dynamics
The Age of the Universe
Distance Measures
Cornering Density of Objects
Growth of Linear Perturbations
Gravitational Lens Probabilities

OBSERVATIONAL STATUS OF THE COSMOLOGICAL CONSTANT
Existence of High-Redshift Objects
Age Concordance: Globular Clusters and Cosmic Nuclear Data
Galaxy Counts as a Function of Redshift or Apparent Magnitude
Dynamical Tests of OmegaLambda
Quasar Absorption Line Statistics
Gravitational Lensing
Astrophysics of Distant Objects

POSSIBLE SOLUTIONS TO THE PHYSICIST'S COSMOLOGICAL CONSTANT PROBLEM
Wormholes and the Cosmological Constant
Other Explanations
CONCLUSIONS

REFERENCES

Next