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https://hdl.handle.net/2440/84317
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Type: | Book chapter |
Title: | Extending the Hubble diagram to higher redshifts in CGR |
Author: | Hartnett, J. |
Citation: | Relativity: Modern Large-Scale Spacetime Structure of the Cosmos, 2008 / Moshe Carmeli, (ed./s), pp.363-380 |
Publisher: | World Scientific Publishing |
Publisher Place: | Singapore |
Issue Date: | 2008 |
ISBN: | 9789812813756 |
Editor: | Moshe Carmeli, |
Statement of Responsibility: | John Hartnett |
Abstract: | The redshift-distance modulus relation, the Hubble Diagram, derived from Cosmological General Relativity are extended to arbitrarily large redshifts. Numerical methods are employed and a density function is found that results in a valid solution of the field equations at all redshifts. The extension is compared to 302 type Ia supernova data as well as to 69 Gamma-ray burst data. The latter however do not truly represent a ‘standard candle’ as the derived distance modulii are not independent of the cosmology used. Nevertheless the analysis shows a good fit can be achieved without the need to assume the existence of dark matter. The Carmelian theory is also shown to describe a Universe that is always spatially flat. This results from the underlying assumption of the energy density of a cosmological constant ΩΛ = 1, the result of vacuum energy. The curvature of the Universe is described by a spacevelocity metric where the energy content of the curvature at any epoch is Ω𝑲 = ΩΛ – = 1 –Ω where Ω is the matter density of the Universe. Hence the total density is always Ω𝑲 + Ω = 1. The following is based on Hartnett 2008. |
Rights: | Copyright © 2008 by World Scientific Publishing Co. Pte. Ltd. |
DOI: | 10.1142/9789812813770_0014 |
Published version: | http://dx.doi.org/10.1142/9789812813770_0014 |
Appears in Collections: | Aurora harvest 4 Chemistry and Physics publications |
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