Lectures at ``Chaotic Dynamics of Gravitational Systems'', to be published in Celestial Mechanics. (astro-ph/9812015)


THE DARK MATTER PROBLEM

Albert Bosma

Observatoire de Marseille, 2 Place Le Verrier, 13248 Marseille Cédex 4, France


ABSTRACT. In these notes I will briefly summarize our knowledge about the dark matter problem, and emphasize the corresponding dynamical aspects. This covers a wide area of research, so I have been selective, and have concentrated on the subject of dark matter in nearby galaxies, in particular spirals.


KEY WORDS: Galaxies, Dark Matter


Table of Contents

SCOPE OF THE DARK MATTER PROBLEM
Several Dark Matter Problems ?
Dark Matter in the Solar Neighbourhood
Dark Matter in Groups and Clusters
Dark Matter in Spiral Galaxies
Expectations
Early Debates
Mass Modelling Methods
Importance of the Dark Matter Problem Today

DARK MATTER IN THE GALAXY
Escape Speed for a Simple Spherical Model
Disk Heating and Massive Black Holes
Improved Local Disk Model
Microlensing Results
Satellites of the Milky Way
Dwarf Galaxy Halos

DARK MATTER IN SPIRAL GALAXIES
Maximum Disks ?
Declining Rotation Curves
Warps
Shape of Dark Matter Halos
Polar Ring Galaxies
Axisymmetry of the Disks
Flaring Gas Layers
Tidal Tail Extent
Extended Dark Halos

DARK MATTER IN OTHER SYSTEMS, AND AT LARGER SCALES
Dark Matter in Ellipticals
Groups and Clusters
Dark Matter in the Universe
Large Scale Structure
Big Bang Nucleosynthesis and the Amount of Baryons
Omega = 1 ?

CONCLUDING REMARKS

REFERENCES

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