Tachyon cosmology, supernovae data and the Big Brake singularity

Simple item page
dc.creatorKeresztes, Z.
dc.creatorGergely, L. Á.
dc.creatorGorini, V.
dc.creatorMoschella, U.
dc.creatorKamenshchik, A. Yu.
dc.date2009-01-15
dc.date2009-04-21
dc.date.accessioned2026-07-07T13:06:40Z
dc.date.available2026-07-07T13:06:40Z
dc.descriptionWe compare the existing observational data on type Ia Supernovae with the evolutions of the universe predicted by a one-parameter family of tachyon models which we have introduced recently in paper \cite{we-tach}. Among the set of the trajectories of the model which are compatible with the data there is a consistent subset for which the universe ends up in a new type of soft cosmological singularity dubbed Big Brake. This opens up yet another scenario for the future history of the universe besides the one predicted by the standard $Λ$CDM model.
dc.descriptionv2: 8 pages, 1 figure + 2 figure panels of 6 figures each; slightly shortened for improved presentation; new references; published version
dc.identifierhttps://arxiv.org/abs/0901.2292
dc.identifierhttp://arxiv.org/abs/0901.2292
dc.identifierPhys.Rev.D79:083504,2009
dc.identifierdoi:10.1103/PhysRevD.79.083504
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/227854
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectCosmology and Nongalactic Astrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleTachyon cosmology, supernovae data and the Big Brake singularity
dc.typetext

Files

Collections

arXiv