Distance-redshift relation in an isotropic inhomogeneous universe: Spherically symmertic dust-shell universe
Norimasa Sugiura, Ken-ichi Nakao, Tomohiro Harada
Abstract
The relation between angular diameter distance and redshift in a spherically symmetric dust-shell universe is studied. This model has large inhomogeneities of matter distribution on small scales. We have discovered that the relation agrees with that of an appropriate Friedmann-Lemaitre(FL) model if we set a ``homogeneous'' expansion law and a ``homogeneous'' averaged density field. This will support the averaging hypothesis that a universe looks like a FL model in spite of small-scale fluctuations of density field, if its averaged density field is homogeneous on large scales.
Create a lesson
Related papers
Constraining the Progenitor Orbits of Sequential Black-Hole Mergers in Hierarchical Triples: Peters-Based Estimates
Felix M. Heinze, Zhoujian Cao
Cubic Quasinormal Modes in the Black-Hole Ringdown
Neev Khera, Huan Yang
Separation of variables for coupled radiative perturbations of Kerr-Newman-de Sitter black holes
Daisuke Yoshida
An extension principle for Einstein-Maxwell-charged scalar field system with finite Doppler exponent
Xinliang An, Haoyang Chen, Taoran He
A Scale-Critical μ<38 Extension Principle for Spherically Symmetric Einstein-Scalar Field System
Xinliang An, Haoyang Chen, Jaydeep Singh
Analytical Time-Domain Waveforms for Black-Hole Scattering in the Post-Minkowskian Expansion
Stefano De Angelis, Vincent F. He, Julio Parra-Martinez