Large-scale structure and integrated Sachs-Wolfe effect in decaying vacuum cosmology

H. Velten; H. A. Borges; S. Carneiro; R. Fazolo; S. Gomes

doi:10.1093/mnras/stv1443

Large-scale structure and integrated Sachs-Wolfe effect in decaying vacuum cosmology

H. Velten, H. A. Borges, S. Carneiro, R. Fazolo, S. Gomes

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Abstract

The concordance particle creation model - a class of Λ(t) Cold Dark Matter (CDM) cosmologies - is studied using large-scale structure (LSS) formation, with particular attention to the integrated Sachs-Wolfe effect. The evolution of the gravitational potential and the amplitude of the cross-correlation of the cosmic microwave background (CMB) signal with LSS surveys are calculated in detail. We properly include in our analysis the peculiarities involving the baryonic dynamics of the Λ(t)CDM model which were not included in previous works. Although both the Λ(t)CDM and the standard cosmology are in agreement with available data for the CMB-LSS correlation, the former presents a slightly higher signal which can be identified with future data.

Original language	English
Pages (from-to)	2220-2224
Number of pages	5
Journal	Monthly Notices of the Royal Astronomical Society
Volume	452
Issue number	2
Early online date	23 Jul 2015
DOIs	https://doi.org/10.1093/mnras/stv1443
Publication status	Published - 11 Sept 2015
Externally published	Yes

Keywords

Dark energy
Dark matter

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10.1093/mnras/stv1443

Large-scale structure and integrated Sachs-Wolfe effect in decaying vacuum cosmology
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stv1443

Cite this

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AU - Borges, H. A.

AU - Carneiro, S.

AU - Fazolo, R.

AU - Gomes, S.

PY - 2015/9/11

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Large-scale structure and integrated Sachs-Wolfe effect in decaying vacuum cosmology

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