Large Scale Structures in Kinetic Gravity Braiding Model That Can Be Unbraided
We study cosmological consequences of a kinetic gravity braiding model, which is proposed as an alternative to the dark energy model. The kinetic braiding model we study is characterized by a parameter n, which corresponds to the original galileon cosmological model for n=1. We find that the backgro...
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ftdatacite:10.48550/arxiv.1011.2006 2023-05-15T18:23:00+02:00 Large Scale Structures in Kinetic Gravity Braiding Model That Can Be Unbraided Kimura, Rampei Yamamoto, Kazuhiro 2010 https://dx.doi.org/10.48550/arxiv.1011.2006 https://arxiv.org/abs/1011.2006 unknown arXiv https://dx.doi.org/10.1088/1475-7516/2011/04/025 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Cosmology and Nongalactic Astrophysics astro-ph.CO High Energy Physics - Theory hep-th FOS Physical sciences article-journal Article ScholarlyArticle Text 2010 ftdatacite https://doi.org/10.48550/arxiv.1011.2006 https://doi.org/10.1088/1475-7516/2011/04/025 2022-04-01T14:29:24Z We study cosmological consequences of a kinetic gravity braiding model, which is proposed as an alternative to the dark energy model. The kinetic braiding model we study is characterized by a parameter n, which corresponds to the original galileon cosmological model for n=1. We find that the background expansion of the universe of the kinetic braiding model is the same as the Dvali-Turner's model, which reduces to that of the standard cold dark matter model with a cosmological constant (LCDM model) for n equal to infinity. We also find that the evolution of the linear cosmological perturbation in the kinetic braiding model reduces to that of the LCDM model for n=\infty. Then, we focus our study on the growth history of the linear density perturbation as well as the spherical collapse in the nonlinear regime of the density perturbations, which might be important in order to distinguish between the kinetic braiding model and the LCDM model when n is finite. The theoretical prediction for the large scale structure is confronted with the multipole power spectrum of the luminous red galaxy sample of the Sloan Digital Sky survey. We also discuss future prospects of constraining the kinetic braiding model using a future redshift survey like the WFMOS/SuMIRe PFS survey as well as the cluster redshift distribution in the South Pole Telescope survey. : 41 pages, 20 figures; This version was accepted for publication in JCAP Text South pole DataCite Metadata Store (German National Library of Science and Technology) South Pole |
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DataCite Metadata Store (German National Library of Science and Technology) |
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Cosmology and Nongalactic Astrophysics astro-ph.CO High Energy Physics - Theory hep-th FOS Physical sciences |
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Cosmology and Nongalactic Astrophysics astro-ph.CO High Energy Physics - Theory hep-th FOS Physical sciences Kimura, Rampei Yamamoto, Kazuhiro Large Scale Structures in Kinetic Gravity Braiding Model That Can Be Unbraided |
topic_facet |
Cosmology and Nongalactic Astrophysics astro-ph.CO High Energy Physics - Theory hep-th FOS Physical sciences |
description |
We study cosmological consequences of a kinetic gravity braiding model, which is proposed as an alternative to the dark energy model. The kinetic braiding model we study is characterized by a parameter n, which corresponds to the original galileon cosmological model for n=1. We find that the background expansion of the universe of the kinetic braiding model is the same as the Dvali-Turner's model, which reduces to that of the standard cold dark matter model with a cosmological constant (LCDM model) for n equal to infinity. We also find that the evolution of the linear cosmological perturbation in the kinetic braiding model reduces to that of the LCDM model for n=\infty. Then, we focus our study on the growth history of the linear density perturbation as well as the spherical collapse in the nonlinear regime of the density perturbations, which might be important in order to distinguish between the kinetic braiding model and the LCDM model when n is finite. The theoretical prediction for the large scale structure is confronted with the multipole power spectrum of the luminous red galaxy sample of the Sloan Digital Sky survey. We also discuss future prospects of constraining the kinetic braiding model using a future redshift survey like the WFMOS/SuMIRe PFS survey as well as the cluster redshift distribution in the South Pole Telescope survey. : 41 pages, 20 figures; This version was accepted for publication in JCAP |
format |
Text |
author |
Kimura, Rampei Yamamoto, Kazuhiro |
author_facet |
Kimura, Rampei Yamamoto, Kazuhiro |
author_sort |
Kimura, Rampei |
title |
Large Scale Structures in Kinetic Gravity Braiding Model That Can Be Unbraided |
title_short |
Large Scale Structures in Kinetic Gravity Braiding Model That Can Be Unbraided |
title_full |
Large Scale Structures in Kinetic Gravity Braiding Model That Can Be Unbraided |
title_fullStr |
Large Scale Structures in Kinetic Gravity Braiding Model That Can Be Unbraided |
title_full_unstemmed |
Large Scale Structures in Kinetic Gravity Braiding Model That Can Be Unbraided |
title_sort |
large scale structures in kinetic gravity braiding model that can be unbraided |
publisher |
arXiv |
publishDate |
2010 |
url |
https://dx.doi.org/10.48550/arxiv.1011.2006 https://arxiv.org/abs/1011.2006 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://dx.doi.org/10.1088/1475-7516/2011/04/025 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1011.2006 https://doi.org/10.1088/1475-7516/2011/04/025 |
_version_ |
1766202418818711552 |