Published in 1987, Moscow, Izdatel'stvo Nauka


DOUBLE GALAXIES

Igor Karachentsev


(Translated by Dr. William Keel, University of Alabama and Dr. Nigel Sharp, National Optical Astronomy Observatories)


Table of Contents

CHAPTER 1 : INTRODUCTION
Binary Systems Among Stars and Galaxies.
Short Historical Sketch.

CHAPTER 2: THE CATALOGUE OF ISOLATED PAIRS OF GALAXIES
Problems of Recognition of Double Galaxies
The Observational Data and Their Reduction
Radial Velocities
Description of the Catalogue

CHAPTER 3: THE DISTRIBUTION OF GENERAL CHARACTERISTICS AND SELECTION EFFECTS
Modelling the Observed Distribution of Pairs
The Problem of False Pairs
The Distribution of Relative Velocities
Separations of Double Galaxies and Selection Effects
Distribution of Apparent Magnitudes
Absolute Magnitudes and Linear Diameters of Double Galaxies

CHAPTER 4: ORBITAL MOTION AND THE MASSES OF DOUBLE GALAXIES
Orbital Mass Estimates
Mass-to-Luminosity Ratios and Projection Factors
Relative Velocities, Separations, and the Type of Orbital Motion
Individual and Orbital Masses of Double Galaxies
Does Hidden Mass Exist in Pairs of Galaxies ?

CHAPTER 5: STRUCTURAL PROPERTIES OF DOUBLE GALAXIES
Morphological Types and Masses of Double Galaxies
Types of Interaction Between Galaxies in Pairs
Emission Properties of Double Galaxies: Pairs With Active Nuclei
Colour Indices and the Coupled Evolution of Double Galaxies
Surface Brightness of Single and Double Galaxies
Conclusions

CHAPTER 6: THE DISTRIBUTION OF DOUBLE SYSTEMS
The Spatial Frequency of Double Galaxies
The Spatial Distribution of Pairs
Double Systems in Groups and Clusters
Peculiar Motions of Pairs

CHAPTER 7: MAGNITUDE AND ORIENTATION OF ANGULAR MOMENTUM
PROPERTIES OF THE EVOLUTION OF DOUBLE GALAXIES
The Orbital and Internal Angular Momentum of Galaxies in Pairs
Relative Orientations of Angular Momenta
Dynamical Friction and the Evolution Rates of Double Galaxies

CONCLUSIONS

REFERENCES

APPENDIX 1
Entries 1-100
Entries 101-200
Entries 201-300
Entries 301-400
Entries 401-500
Entries 501-603

APPENDIX 2
Entries 1-100
Entries 101-200
Entries 201-300
Entries 301-400
Entries 401-500
Entries 501-603

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