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  1. B100 理学部/理学研究科
  2. B100a 雑誌掲載論文
  3. 学術雑誌

Delicate f(R) gravity models with a disappearing cosmological constant and observational constraints on the model parameters

http://hdl.handle.net/2237/11278
http://hdl.handle.net/2237/11278
757f56d4-481e-45d4-81a2-9e591a1828ab
名前 / ファイル ライセンス アクション
PhysRevD_78_083515.pdf PhysRevD_78_083515.pdf (364.8 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2009-03-09
タイトル
タイトル Delicate f(R) gravity models with a disappearing cosmological constant and observational constraints on the model parameters
言語 en
著者 Dev, Abha

× Dev, Abha

WEKO 27041

en Dev, Abha

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Jain, Deepak

× Jain, Deepak

WEKO 27042

en Jain, Deepak

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Jhingan, S.

× Jhingan, S.

WEKO 27043

en Jhingan, S.

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Nojiri, S.

× Nojiri, S.

WEKO 27044

en Nojiri, S.

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Sami, M.

× Sami, M.

WEKO 27045

en Sami, M.

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Thongkool, I.

× Thongkool, I.

WEKO 27046

en Thongkool, I.

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 American Physical Society, All rights reserved.
抄録
内容記述 We study the f(R) theory of gravity using the metric approach. In particular we investigate the recently proposed model by Hu and Sawicki; Appleby and Battye; and Starobinsky. In this model, the cosmologicalconstant is zero in flat space time. The model passes both the solar system and the laboratory tests. But the model parameters need to be fine-tuned to avoid the finite time singularity recently pointed to in the literature. We check the concordance of this model with the H(z) and baryon acoustic oscillation data. We find that the model resembles the ΛCDM at high redshift. However, for some parameter values there are variations in the expansion history of the universe at low redshift.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 American Physical Society
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1103/PhysRevD.78.083515
ISSN
収録物識別子タイプ PISSN
収録物識別子 1550-7998
書誌情報 en : PHYSICAL REVIEW D

巻 78, 号 8, p. 083515-083515, 発行日 2008-10
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/11278
識別子タイプ HDL
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