Dark Sky Dark Matter - ISBN:075030684X

Dark Sky Dark Matter

Date: 19 January 2011, 08:40

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"Right after "Why is the sky blue?," "Why is the sky dark?" is the next most commonly asked question kids, and non kids, too, ask of parents, in particular, and science in general ... the dilemma of the question actually became tougher to explain, resulting in what has become known as "Olbers' Paradox". Olbers, a Prussian astronomer, postulated in 1823, "given that the Universe is unbounded, governed by the standard laws of physics, and populated by light sources of constant intensity, the simple cube law of volumes and numbers implies that the sky should be ablaze with light. Obviously, this is not so". Dark Sky, Dark Matter takes this paradox and runs with it. To the authors' credit, they begin the book with a remarkable history and treatment of Olbers and his paradox, explaining the variety of tactics people have used either to explain away the paradox or to support their own theories. The rest of the book delves into the astrophysical nature of the universe, structure of the stars and galaxies, radiation, and dark matter. The ancillary material includes three appendices detailing mathematical models and an adequate index. This book utilizes advanced mathematics and physics, more appropriate for a graduate course in Physics or astrophysics. Recommended for academic collections supporting physics (astrophysics) programs." - Peggy Dominy in E-Streams "The story of how all these exotic ingredients can be constrained by modern data is well told, and contains some interesting material. Overall, this book may well be consulted by graduate students seeking details of these topics. - John Peacock in The Observatory, June 2003
The darkness of the night sky awed our ancestors and fascinates modern astronomers. It is a fundamental problem: why is the night sky dark and just how dark is it? Written for active researchers and graduate students, Dark Sky, Dark Matter answers these questions both qualitatively and quantitatively from the viewpoints of both history and modern cosmology. The approach of the authors is to compare the best observational data from large telescopes with the best cosmological theory based on general relativity and particle physics. This gives us a more accurate picture of the universe and the exotic material believed to constitute dark matter, various candidates for which the authors examine in detail."

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