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 language | English |
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Title of host publication | Progress in Mathematical Relativity, Gravitation and Cosmology - Proceedings of the Spanish Relativity Meeting ERE2012 |
Publisher | Springer New York LLC |
Pages | 387-390 |
Number of pages | 4 |
Volume | 60 |
ISBN (Print) | 978-3642401565 |
DOIs | |
Publication status | Published - 13 Sept 2013 |
Event | Spanish Relativity Meeting - Guimaraes, Portugal Duration: 3 Sept 2012 → 7 Sept 2012 |
Conference
Conference | Spanish Relativity Meeting |
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Abbreviated title | ERE 2012 |
Country/Territory | Portugal |
City | Guimaraes |
Period | 3/09/12 → 7/09/12 |