| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
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|
タイトル |
Searching for modified gravity with baryon oscillations : From SDSS to wide field multiobject spectroscopy (WFMOS) |
|
言語 |
en |
| 作成者 |
Yamamoto, Kazuhiro
Bassett, Bruce A.
Nichol, Robert C.
Suto, Yasushi
Yahata, Kazuhiro
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| アクセス権 |
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|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
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|
権利情報 |
Copyright (c) 2006 The American Physical Society. |
| 内容記述 |
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|
内容記述 |
We discuss how the baryon acoustic oscillation (BAO) signatures in the galaxy power spectrum can distinguish between modified gravity and the cosmological constant as the source of cosmic acceleration. To this end we consider a model characterized by a parameter n, which corresponds to the Dvali- Gabadadze-Porrati (DGP) model if n = 2 and reduces to the standard spatially flat cosmological constant concordance model for n equal to infinity. We find that the different expansion histories of the modified gravity models systematically shifts the peak positions of BAO. A preliminary analysis using the current SDSS luminous red galaxy (LRG) sample indicates that the original DGP model is disfavored unless the matter density parameter exceeds 0.3. The constraints will be strongly tightened with future spectroscopic samples of galaxies at high redshifts. We demonstrate that WFMOS, in collaboration with other surveys such as Planck, will powerfully constrain modified gravity alternatives to dark energy as the explanation of cosmic acceleration. |
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言語 |
en |
| 出版者 |
|
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出版者 |
American Physical Society |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
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 |
| 関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
10.1103/PhysRevD.74.063525 |
| 関連情報 |
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1103/PhysRevD.74.063525 |
| 収録物識別子 |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
1550-7998 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00773624 |
| 開始ページ |
|
|
開始ページ |
063525-1 |
| 書誌情報 |
Physical Review D - Particles, Fields, Gravitation and Cosmology
Physical Review D - Particles, Fields, Gravitation and Cosmology
巻 74,
号 6,
p. 063525-1-063525-11,
発行日 2006-09-27
|
| 旧ID |
19252 |
PhysRevD_74_063525.pdf (656.2 KB)
