On a sneezing universe

2015/08/04 by André Tilquin, Tilquin, André, Thomas Schucker +1 · 1 citation
Physics and Astronomy · #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #astro-ph.CO

paper · pdf · doi:10.48550/arxiv.1508.00809

14 pages, 6 figures, 2 tables. To the memory of Daniel Kastler and Raymond Stora

arxiv created 2015/08/04 · arxiv updated 2015/08/05

Abstract

A 1-parameter class of quadratic equations of state is confronted with the Hubble diagram of supernovae. The fit is found to be as good as the one using the standard LambdaCDM model. However this quadratic equation of state precludes objects with redshifts higher than z_max = 1.7. Adding a fair amount of cold baryons to the model increases z_max without spoiling the fit.

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