Dark Energy Reflections in the Redshift-Space Quadrupole
Physical Review Letters Volume 94 Issue 5
Page 051301-1-051301-4
published_at 2005-02-11
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| File | |
| Title ( eng ) |
Dark Energy Reflections in the Redshift-Space Quadrupole
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| Creator |
Bassett Bruce A.
Nishioka Hiroaki
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| Source Title |
Physical Review Letters
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| Volume | 94 |
| Issue | 5 |
| Start Page | 051301-1 |
| End Page | 051301-4 |
| Abstract |
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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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 2005-02-11 |
| Rights |
Copyright (c) 2005 The American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[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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