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arXiv · astro-ph/0606703

Nonlinear Structure Formation and "Apparent" Acceleration: an Investigation

Tirthabir Biswas·Reza Mansouri·Alessio Notari
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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.

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Tirthabir Biswas, Reza Mansouri, Alessio Notari. 2006-07-05. Nonlinear Structure Formation and "Apparent" Acceleration: an Investigation. https://doi.org/10.1088/1475-7516%2F2007%2F12%2F017

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