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Abstract: We study the impact of cosmic inhomogeneities on the interpretation of SNeobservations. We build an inhomogeneous universe model that can confrontsupernova data and yet is reasonably well compatible with the CopernicanPrinciple. Our model combines a relatively small local void, that givesapparent acceleration at low redshifts, with a meatball model that givessizeable lensing dimming at high redshifts. Together these two elements,which focus on different effects of voids on the data, allow the model to mimicthe concordance model.



Autor: Kimmo Kainulainen, Valerio Marra

Fuente: https://arxiv.org/







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