Back to the article index


Table of Contents

1. INTRODUCTION
2. ROTATION CURVES OF SPIRAL GALAXIES AND DARK MATTER
2.1. Some examples of typical rotation curves
2.2. Some problems
2.3. The Bosma relation
2.4. The "Universal rotation curves"
2.5. Dwarf irregular galaxies
2.6. The rotation curve of the Milky Way
3. DARK MATTER IN OTHER GALAXIES
3.1. Dark matter in elliptical galaxies
3.2. Lenticular Galaxies
3.3. Dwarf spheroidal galaxies
3.4. Polar ring galaxies
3.5. Binary galaxies
3.5.1. M31 and the Milky Way
3.5.2. Statistics of binary galaxies
3.6. Globular clusters and satellites
4. THEORY
4.1. The nature of galactic dark matter
4.2. CDM theoretical models
4.2.1. Growth of primordial fluctuations
4.2.2. CDM Hierarchical Models
4.2.3. Recent developments
4.2.4. General remarks
4.2.5. Some successes and failures
4.2.6. CDM Models, halo structure and rotation of spirals
4.3. MOND
4.3.1. MOND applied to different astrophysical systems
4.3.2. Final comments about MOND
4.4. The magnetic hypothesis
4.4.1. Are magnetic fields ignorable?
Extragalactic magnetic fields
Magnetic fields in the outermost region of galactic disks
4.4.2. The magnetic model
The one-dimension model
The two-dimension model. Flaring and escape
Some indirect arguments against and favouring the magnetic hypothesis
4.4.3. Mechanisms producing magnetic fields in the outermost disk
Turbulent difussion and the galactic magnetic field
A dynamo-like mechanism
4.4.4. The origin of cosmic magnetic fields
Inflation magnetic fields
Phase transition magnetic fields
Magnetic fields generated by turbulence during the radiation dominated era
Magnetic Fields generated after Recombination
Comments on the different theories
4.4.5. Large scale structure and magnetic fields
4.4.6. A tentative history of cosmological magnetic fields
5. COMMON HALOS
6. CONCLUSIONS
REFERENCES