Dark Energy Reflections in the Redshift-Space Quadrupole
Physical Review Letters 94 巻 5 号
051301-1-051301-4 頁
2005-02-11 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Dark Energy Reflections in the Redshift-Space Quadrupole
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| 作成者 |
Bassett Bruce A.
Nishioka Hiroaki
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| 収録物名 |
Physical Review Letters
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| 巻 | 94 |
| 号 | 5 |
| 開始ページ | 051301-1 |
| 終了ページ | 051301-4 |
| 抄録 |
We show that the redshift-space quadrupole will be a powerful tool for constraining dark energy even if the baryon oscillations are missing from the monopole power spectrum and bias is scale and time dependent. We calculate the accuracy with which next-generation galaxy surveys such as KAOS will measure the quadrupole power spectrum, which gives the leading anisotropies in the power spectrum in redshift space due to linear velocity, and the so-called "Finger of God" and Alcock-Paczynski effects. Combining the monopole and quadrupole power spectra, in the complete absence of baryon oscillations (Ωb = 0), leads to a roughly 500% improvement in constraints on dark energy compared with those from the monopole spectrum alone.
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Physical Society
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| 発行日 | 2005-02-11 |
| 権利情報 |
Copyright (c) 2005 The American Physical Society.
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.94.051301
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.94.051301
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