首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Extending the Redshift-Distance Relation in Cosmological General Relativity to Higher Redshifts
Authors:John G Hartnett
Institution:(1) School of Physics, University of Western Australia, 35 Stirling Hwy, Crawley, 6009, WA, Australia
Abstract:The redshift-distance modulus relation, the Hubble Diagram, derived from Cosmological General Relativity has been extended to arbitrarily large redshifts. Numerical methods were employed and a density function was found that results in a valid solution of the field equations at all redshifts. The extension has been 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 moduli 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 Ω K Λ−Ω=1−Ω, where Ω is the matter density of the universe. Hence the total density is always Ω K +Ω=1.
Keywords:Cosmological General Relativity  High redshift type Ia supernovae  Gamma-ray burst  Dark matter  Distance modulus
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号