Phenomenology of Unified Dark Matter Models with fast transition

Alberto Rozas-Fernández; Marco Bruni; Ruth Lazkoz

doi:10.1007/978-3-642-40157-2_58

Phenomenology of Unified Dark Matter Models with fast transition

Alberto Rozas-Fernández^*, Marco Bruni, Ruth Lazkoz

^*Corresponding author for this work

Institute of Cosmology & Gravitation

University of the Basque Country

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
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	https://doi.org/10.1007/978-3-642-40157-2_58
Publication status	Published - 13 Sept 2013
Event	Spanish Relativity Meeting - Guimaraes, Portugal Duration: 3 Sept 2012 → 7 Sept 2012

Conference

Conference	Spanish Relativity Meeting
Abbreviated title	ERE 2012
Country/Territory	Portugal
City	Guimaraes
Period	3/09/12 → 7/09/12

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10.1007/978-3-642-40157-2_58

Cite this

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title = "Phenomenology of Unified Dark Matter Models with fast transition",

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.",

author = "Alberto Rozas-Fern{\'a}ndez and Marco Bruni and Ruth Lazkoz",

year = "2013",

month = sep,

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doi = "10.1007/978-3-642-40157-2\_58",

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booktitle = "Progress in Mathematical Relativity, Gravitation and Cosmology - Proceedings of the Spanish Relativity Meeting ERE2012",

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note = "Spanish Relativity Meeting, ERE 2012 ; Conference date: 03-09-2012 Through 07-09-2012",

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Rozas-Fernández, A, Bruni, M & Lazkoz, R 2013, Phenomenology of Unified Dark Matter Models with fast transition. in Progress in Mathematical Relativity, Gravitation and Cosmology - Proceedings of the Spanish Relativity Meeting ERE2012. vol. 60, Springer New York LLC, pp. 387-390, Spanish Relativity Meeting, Guimaraes, Portugal, 3/09/12. https://doi.org/10.1007/978-3-642-40157-2_58

Phenomenology of Unified Dark Matter Models with fast transition. / Rozas-Fernández, Alberto; Bruni, Marco; Lazkoz, Ruth.
Progress in Mathematical Relativity, Gravitation and Cosmology - Proceedings of the Spanish Relativity Meeting ERE2012. Vol. 60 Springer New York LLC, 2013. p. 387-390.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Lazkoz, Ruth

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N2 - 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.

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AN - SCOPUS:84893486904

SN - 978-3642401565

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BT - Progress in Mathematical Relativity, Gravitation and Cosmology - Proceedings of the Spanish Relativity Meeting ERE2012

PB - Springer New York LLC

T2 - Spanish Relativity Meeting

Y2 - 3 September 2012 through 7 September 2012

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Phenomenology of Unified Dark Matter Models with fast transition

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