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Books > Science & Mathematics > Physics > Relativity physics
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Baryonic Dark Matter (Paperback, Softcover reprint of the original 1st ed. 1990)
Loot Price: R1,564
Discovery Miles 15 640
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Baryonic Dark Matter (Paperback, Softcover reprint of the original 1st ed. 1990)
Series: NATO Science Series C, 306
Expected to ship within 10 - 15 working days
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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.
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