Impact of cosmic inhomogeneities on SNe observations

Kimmo Kainulainen; Valerio Marra

doi:10.1063/1.3462598

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arXiv · 0911.5584

Impact of cosmic inhomogeneities on SNe observations

Kimmo Kainulainen·Valerio Marra

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Abstract

We study the impact of cosmic inhomogeneities on the interpretation of SNe observations. We build an inhomogeneous universe model that can confront supernova data and yet is reasonably well compatible with the Copernican Principle. Our model combines a relatively small local void, that gives apparent acceleration at low redshifts, with a meatball model that gives sizeable lensing (dimming) at high redshifts. Together these two elements, which focus on different effects of voids on the data, allow the model to mimic the concordance model.

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Kimmo Kainulainen, Valerio Marra. 2009-11-30. Impact of cosmic inhomogeneities on SNe observations. https://doi.org/10.1063/1.3462598

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