Fitting oscillating string gas cosmology to supernova data

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dc.creatorFerrer, Francesc
dc.creatorMultamaki, Tuomas
dc.creatorRasanen, Syksy
dc.date2008-12-22
dc.date2009-04-02
dc.date.accessioned2026-07-07T13:04:49Z
dc.date.available2026-07-07T13:04:49Z
dc.descriptionIn string gas cosmology, extra dimensions are stabilised by a gas of strings. In the matter-dominated era, competition between matter pushing the extra dimensions to expand and the string gas pulling them back can lead to oscillations of the extra dimensions and acceleration in the visible dimensions. We fit this model to supernova data, taking into account the Big Bang Nucleosynthesis constraint on the energy density of the string gas. The fit to the Union set of supernova data is acceptable, but the fit to the ESSENCE data is poor.
dc.description17 pages, 4 figures. v2: published version. Important correction in the calculation of distances, added references
dc.identifierhttps://arxiv.org/abs/0812.4182
dc.identifierhttp://arxiv.org/abs/0812.4182
dc.identifierJHEP 0904:006,2009
dc.identifierdoi:10.1088/1126-6708/2009/04/006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/227300
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleFitting oscillating string gas cosmology to supernova data
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