Phenomenology of Unified Dark Matter Models with fast transition

Alberto Rozas-Fernández*, Marco Bruni, Ruth Lazkoz

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A fast transition between a standard matter-like era and a late ΛCDM-like epoch generated by a single Unified Dark Matter component can explain the observed acceleration of the Universe. UDM models with a fast transition should be clearly distinguishable from ΛCDM (and alternatives) through observations. Here we focus on a particularly simple model and analyse its viability by studying features of the background model and properties of the adiabatic UDM perturbations.

Original languageEnglish
Title of host publicationProgress in Mathematical Relativity, Gravitation and Cosmology - Proceedings of the Spanish Relativity Meeting ERE2012
PublisherSpringer New York LLC
Pages387-390
Number of pages4
Volume60
ISBN (Print)978-3642401565
DOIs
Publication statusPublished - 13 Sep 2013
EventSpanish Relativity Meeting - Guimaraes, Portugal
Duration: 3 Sep 20127 Sep 2012

Conference

ConferenceSpanish Relativity Meeting
Abbreviated titleERE 2012
CountryPortugal
CityGuimaraes
Period3/09/127/09/12

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