Probing the Lambda-DGP Braneworld model

We study cosmic dynamics in the context of the normal branch of the DGP braneworld model. Using current Planck data, we find the best fitting model and associated cosmological parameters in non-fiat ADGP. With the transition redshift as a basic variable and statefinder parameters, our result shows t...

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Bibliographic Details
Published inResearch in astronomy and astrophysics Vol. 16; no. 9; pp. 31 - 38
Main Authors Ravanpak, Arvin, Farajollahi, Hossein, Fadakar, Golnaz
Format Journal Article
LanguageEnglish
Published National Astronomical Observatories of Chinese Academy of Sciences and IOP Publishing 01.09.2016
Subjects
(cosmology:) cosmological parameters
Astronomy
Cosmology
dark energy
DM模型
Dynamic tests
Dynamics
Mathematical models
methods: numerical
observations
Parameters
Red shift
theory
Universe
一致性问题
世界
加速膨胀
动力学
宇宙学参数
拟合模型
膜
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ISSN1674-4527
2397-6209
2397-6209
DOI10.1088/1674-4527/16/9/137

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Summary:We study cosmic dynamics in the context of the normal branch of the DGP braneworld model. Using current Planck data, we find the best fitting model and associated cosmological parameters in non-fiat ADGP. With the transition redshift as a basic variable and statefinder parameters, our result shows that the Universe starts its accelerated expansion phase slightly earlier than expected in ACDM cosmology. The result also alleviates the coincidence problem of the ACDM model.
Bibliography:11-5721/P
We study cosmic dynamics in the context of the normal branch of the DGP braneworld model. Using current Planck data, we find the best fitting model and associated cosmological parameters in non-fiat ADGP. With the transition redshift as a basic variable and statefinder parameters, our result shows that the Universe starts its accelerated expansion phase slightly earlier than expected in ACDM cosmology. The result also alleviates the coincidence problem of the ACDM model.
（cosmology：） cosmological parameters -- observations -- theory -- dark energy -- methods;numerical
ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:1674-4527
2397-6209
2397-6209
DOI:10.1088/1674-4527/16/9/137