Ebook: Baryonic Dark Matter
- Tags: Classical and Quantum Gravitation Relativity Theory, Astronomy Observations and Techniques, Astrophysics and Astroparticles
- Series: NATO ASI Series 306
- Year: 1990
- Publisher: Springer Netherlands
- Edition: 1
- Language: English
- pdf
The visible universe is a small perturbation on the material universe. Zwicky and Sinclair Smith in the 1930s gave evidence of invisible mass in the Coma and Virgo Clusters of Galaxies. Better optical data has only served to confound their critics and the X-ray data confirms that the gravitational potentials are many times larger than those predicted on the basis of the observed stars. Dynamical analyses of individual galaxies have found that significant extra mass is needed to explain their rotational velocities. On much larger scales, tens of megaparsecs, there is suggestive evidence that there is even more mass per unit luminosity. What is this non-luminous stuff of which the universe is made'? How much of it is there? Need there be only one kind of stuff? There are three basic possi bili ties:- all of it is ordinary (baryonic) matter, all of it is some other kind of (non-baryonic) matter, or some of it is baryonic and some is non-baryonic.
Content:
Front Matter....Pages i-xii
How Many Baryons are There?....Pages 1-6
Cometary Masses....Pages 7-35
Dark Matter in the Solar System....Pages 37-65
Low-Mass Stars and Brown Dwarfs....Pages 67-85
White Dwarfs and the Local Mass Density....Pages 87-101
Cooling Rates and Numbers of Faint White Dwarfs....Pages 103-110
The Galactic Distribution of Neutron Stars....Pages 111-115
Wide Binaries and Mass Limits on Dark Matter....Pages 117-136
Dark Matter in the Galactic Disk....Pages 137-157
Systematic Properties of Rotation Curves and Dark Matter....Pages 159-177
Are There Massive Black Holes in Galactic Nuclei?....Pages 179-194
The Formation of Dark Matter in Cooling Flows....Pages 195-221
QSO Absorption Lines, Early Evolution of Galactic Halos and the Metagalactic UV Flux....Pages 223-235
Baryonic Dark Matter and the Chemical Evolution of Galaxies....Pages 237-256
Nuclear Reactions in Inhomogeneous Cosmologies....Pages 257-264
Constraints on Baryon-Dominated Cosmological Models from Light Element Abundances and CMB Fluctuations....Pages 265-278
Can Halos Consist of Compact Stellar Remnants?....Pages 279-294
Back Matter....Pages 295-298
Content:
Front Matter....Pages i-xii
How Many Baryons are There?....Pages 1-6
Cometary Masses....Pages 7-35
Dark Matter in the Solar System....Pages 37-65
Low-Mass Stars and Brown Dwarfs....Pages 67-85
White Dwarfs and the Local Mass Density....Pages 87-101
Cooling Rates and Numbers of Faint White Dwarfs....Pages 103-110
The Galactic Distribution of Neutron Stars....Pages 111-115
Wide Binaries and Mass Limits on Dark Matter....Pages 117-136
Dark Matter in the Galactic Disk....Pages 137-157
Systematic Properties of Rotation Curves and Dark Matter....Pages 159-177
Are There Massive Black Holes in Galactic Nuclei?....Pages 179-194
The Formation of Dark Matter in Cooling Flows....Pages 195-221
QSO Absorption Lines, Early Evolution of Galactic Halos and the Metagalactic UV Flux....Pages 223-235
Baryonic Dark Matter and the Chemical Evolution of Galaxies....Pages 237-256
Nuclear Reactions in Inhomogeneous Cosmologies....Pages 257-264
Constraints on Baryon-Dominated Cosmological Models from Light Element Abundances and CMB Fluctuations....Pages 265-278
Can Halos Consist of Compact Stellar Remnants?....Pages 279-294
Back Matter....Pages 295-298
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