Nonlinear Structure Formation and "Apparent" Acceleration: an Investigation
Astrophysics
2014-10-13 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We present an analytically solvable nonlinear model of structure formation in a Universe with only dust. The model is an LTB solution (of General Relativity) and structures are shells of different density. We show that the luminosity distance-redshift relation has significant corrections at low redshift when the density contrast becomes nonlinear. A minimal effect is a correction in apparent magnitudes of order 0.15. We discuss different possibilities that could further enhance this effect and mimick Dark Energy.
Keywords
Cite
@article{arxiv.astro-ph/0606703,
title = {Nonlinear Structure Formation and "Apparent" Acceleration: an Investigation},
author = {Tirthabir Biswas and Reza Mansouri and Alessio Notari},
journal= {arXiv preprint arXiv:astro-ph/0606703},
year = {2014}
}
Comments
57 pages, 13 figures. Formatting errors fixed