CONTENTS -- Foreword to the First Edition -- Chapter 1. Introduction John N. Bahcall -- Contents of This Book -- Chapter 2. Distribution of Dark Matter in the Spiral Galaxy NGC 3198 T. S. van Albada, K. Begeman, R. Sanscisi and J. N. Bahcall -- 1 Introduction -- 2 Distribution of Light -- 3 Rotation Curve -- 4 Mass Models -- 4.1 Choice of Components -- 4.2 Fits with Exponential Disk and Halo -- 4.3 An Upper Limit for the Mass of the Spheroidal Component -- 5 Discussion -- Aknowledgements -- Appendix: Dark Matter and the Tully-Fisher Relation -- References -- Chapter 3. Some Possible Regularities in Missing Mass John N. Bahcall and Stefano Casertano -- 1 Introduction -- 2 The Simplicity -- 3 The Numerical Characteristics -- 4 The Local Missing Mass -- 5 Implications -- Acknowledgements -- References -- Chapter 4. Evolution of Globular Clusters and the Globular Cluster System - I J. P. Ostriker and C. Thompson -- 1 Globular Clusters -- 2 Basic Properties of Globular Clusters -- 3 Equilibrium Structure of Globular Clusters -- 4 Methods of Computing the Evolution of a Globular Cluster -- 5 Early Evolution of an Isolated Globular Cluster -- 6 Effects of Finite Stellar Size: Heating and Core Bounce -- 7 External Effects on the Evolution of a Globular Cluster -- 8 Evolution of the Globular Cluster System: Destruction of Clusters -- 9 Outstanding Issues -- 10 Nature of the Dark Halo of Our Galaxy -- References -- Chapter 5. Positive Energy Perturbations in Cosmology - II J. P. Ostriker and C. Thompson -- 1 Hydrodynamics in a Cosmological Setting -- 2 Various Self-Similar Solutions for Blast Waves -- 3 Shell Structure -- 4 Equation of Motion of a Thin Shell -- 5 Gravitational Instability in a Shell -- 6 Interactions between Cosmological Blasts -- References -- Chapter 6. Dark Matter in Galaxies and Galaxy Systems Scott Tremaine and Hyung Mok Lee.

1 Introduction -- 1.1 Virial Theorem -- 1.2 History of Dark Matter -- 1.3 A Quick Review of Cosmology -- 1.4 Mass-to-light Ratio in the Solar Neighbourhood -- 1.5 Classification Scheme of Dark Matter -- 2 Theory of Stellar Dynamics -- 2.1 Collisionless Boltzmann Equation -- 2.2 The Jeans Theorem -- 2.3 Examples of Distribution Functions -- 2.3.1 Plummer model -- 2.3.2 Isothermal sphere -- 2.4 Moments of the Collisionless Boltzmann Equation -- 3 Elliptical Cores and Dwarf Spheroidal Galaxies -- 4 The Extent of the Galactic Halo -- 4.1 Local Escape Speed -- 4.2 Magellanic Stream -- 4.3 Local Group Timing -- 4.4 Kinematics of Satellite Galaxies -- 4.5 Summary -- 5 Binary Galaxies -- 6 Masses of Groups and Clusters of Galaxies -- 6.1 Groups of Galaxies -- 6.2 Rich Clusters: Coma Cluster -- 7 Summary -- Acknowledgements -- References -- Chapter 7. Gravitational Lenses Roger D. Blandford and Christopher S. Kochanek -- 1 Introduction -- 1.1 History -- 1.2 Simple Estimates -- 1.3 Uses -- 1.4 Organization of Lectures -- References -- Historical Articles -- Review Articles -- 2 The Optics of Gravitational Lenses -- 2.1 Vector Formalism -- 2.1.1 The lens equation -- 2.1.2 Image amplification and parity -- 2.1.3 Distance measures -- 2.2 Scalar Formalism: Fermat's Principle -- 2.3 Propagation Formalism: The Optical Scalar Equations -- References -- Vector Formalism -- Fermat's Principle -- Optical Scalar Equations -- Basic Cosmology and Distance Measures -- 3 Gravitational Potential Wells -- 3.1 Uniform Sheet -- 3.2 Point Mass (Black Hole) -- 3.3 Singular Isothermal Sphere -- 3.4 Isothermal Sphere with Finite Core -- 3.5 Elliptical Potentials -- 3.6 Irregular Potentials -- 3.7 Cosmic Strings -- References -- Examples of Lensing -- Cosmic Strings -- 4 Generic Features of Images -- 4.1 Arrival Time Surfaces -- 4.2 Caustics and Catastrophes.

4.2.1 Structural stability of images -- 4.2.2 Isolated image -- 4.2.3 Fold catastrophe -- 4.2.4 Cusp catastrophe -- 4.2.5 Higher order catastrophes -- 4.3 Caustics as Conjugate Points of Ray Congruences -- References -- Caustics and Catastrophes -- 5 Microlensing -- 5.1 Order of Magnitude Estimates -- 5.2 The Character of Microimages: Low Optical Depth -- 5.3 The Character of Microimages: Moderate Optical Depth -- 5.4 The Character of Microimages: Large Optical Depth -- References -- 6 Compound Lenses -- References -- 7 The Observational Position -- 7.1 A Reprise of Existing Candidates -- 7.1.1 The double QSO: 0957 + 561 -- 7.1.2 PG 1115 + 080 -- 7.1.3 2016 + 112 -- 7.1.4 2237 + 0305 -- 7.1.5 3C324 -- 7.1.6 1042 + 178 -- 7.1.7 The dark matter lenses: 2345 + 007, 1635 + 267, and 0023 + 171 -- 7.1.8 1146 + 111 -- 7.2 Space Density of Sources - Quasars, Galaxies, and Radio Sources -- 7.3 Space Density of Lenses - Galaxies and Clusters -- 7.4 Amplification Bias -- 7.5 Surveys and Future Prospects -- References -- 0957 + 561 -- 1115 + 080 -- 2016 + 112 -- 2237 + 031 -- 1146 + 111 -- Other Lens Candidates -- Statistics and Amplification Bias -- Galaxy Models, Quasar and Galaxy Distributions -- Surveys -- 8 Lenses as Probes of the Universe -- 8.1 The Hubble Constant -- 8.2 Galactic Masses -- 8.3 Lensing by Dark Matter -- References -- Measuring Galaxy Masses and H0 -- Forms of Dark Matter -- 9 Concluding Remarks -- Acknowledgements -- Chapter 8. An Introduction to Inflation William H. Press and David N. Spergel -- 1 Review of Big Bang Cosmology -- 2 Inflation -- 3 Additional Topics Not Covered Here -- References -- Chapter 9. Wimps in the Sun and in the Lab William H. Press and David N. Spergel -- 1 WIMPS and the Solar Neutrino Problem -- 2 Detecting WIMPS in the Lab -- References.

Chapter 10. An Introduction to Cosmic Strings William H. Press and David N. Spergel -- 1 Birth of Cosmic Strings -- 2 The Motion of a Cosmic String Loop -- 3 Cosmic Strings and the Formation of Galaxies -- 3.1 Spherical Accretion Model -- 3.2 Competition between Loops -- 3.3 Galaxy Morphology -- 4 Observing Cosmic Strings -- References -- Chapter 11. A Departure from Newtonian Dynamics at Low Accelerations as an Explanation of the Mass- Discrepancy in Galactic Systems Mordehai Milgrom -- Outline of the Lectures -- 1 Introduction -- 2 Dynamics at Low Accelerations -- 3 A Nonrelativistic Formulation -- 4 Effects of an Ambient Field -- 5 Observational Consequences -- 5.1 Disc Galaxies -- 5.2 Elliptical Galaxies -- 5.3 The General Expression for the "Dark Matter" Density -- 5.4 The Sign of the Phantom Density - Negative "Dark Matter" -- 5.5 Phantom Matter in Galactic Discs -- References -- Chapter 12. Dark Matter in Cosmology Anthony Aguirre -- 1 Introduction -- 2 Dark Matter and Structure Formation -- 2.1 Initial Conditions and the Standard Cosmological Model -- 2.2 Evolution of Perturbations -- 3 Tests and Constraints from the Microwave Background -- 4 Tests and Constraints from the Ly- Forest and Distribution of Galaxies -- 5 Dark Matter and Galaxy Formation -- 5.1 Halo Formation -- 5.2 The Halo Mass Function -- 5.3 Halo Profiles -- 5.4 Angular Momentum -- 5.5 From a Dark Halo to a Galaxy -- 5.6 Current Status of Galaxy Formation Theory -- 5.7 Outstanding Problems, and Alternatives to (Cold) Dark Matter -- Conclusions -- References.