The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.
Probing dark energy perturbations: The dark energy equation of state and speed of sound as measured by WMAP
Open accessAbstract
We review the implications of having a nontrivial matter component in the Universe and the potential for detecting such a component through the matter power spectrum and integrated Sachs-Wolfe effect. We adopt a phenomenological approach and consider the mysterious dark energy to be a cosmic fluid. It is thus fully characterized, up to linear order, by its equation of state and its speed of sound. Whereas the equation of state has been widely studied in the literature, less interest has been devoted to the speed of sound. Its observational consequences come predominantly from very large scale modes of dark matter perturbations $(k<0.01h{\mathrm{Mpc}}^{\ensuremath{-}1}).$ Since these modes have hardly been probed so far by large scale galaxy surveys, we investigate whether joint constraints can be placed on those two quantities using the recent cosmic microwave background (CMB) fluctuations measurements by the Wilkinson Microwave Anisotropy Probe as well as the recently measured CMB large scale structure cross correlation. We find only a tentative 1 sigma detection of the speed of sound, from CMB alone, ${c}_{s}^{2}<0.04$ at this low significance level. Furthermore, the current uncertainties in bias in the matter power spectrum preclude any constraints being placed using the cross correlation of CMB with the NRAO VLA Sky Survey radio survey.
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Cites
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The cosmological constant and dark energy
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Cited by
Three‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Implications for Cosmology
Spergel, D. N., Bean, R., Dore, O., Nolta, M. R., Bennett, C. L., Dunkley, J., Hinshaw, G., Jarosik, N., Komatsu, E., Page, L., et al. (2007) · The Astrophysical Journal Supplement Series · doi:10.1086/513700 · Cited by 6,778
Self-citationCosmology and Fundamental Physics with the Euclid Satellite
The Euclid Theory Working Group, Amendola, L., Appleby, S., Bacon, D., Baker, T., Baldi, M., Bartolo, N., Blanchard, A., Bonvin, C., Borgani, S., et al. (2013) · Living Reviews in Relativity · doi:10.12942/lrr-2013-6 · Cited by 899
Dalal, N., Doré, O., Huterer, D., & Shirokov, A. (2008) · Physical Review D · doi:10.1103/physrevd.77.123514 · Cited by 830
Self-citationCosmic microwave weak lensing data as a test for the dark universe
Calabrese, E., Slosar, A., Melchiorri, A., Smoot, G. F., & Zahn, O. (2008) · Physical Review D · doi:10.1103/physrevd.77.123531 · Cited by 224
Current constraints on the cosmic growth history
Bean, R., & Tangmatitham, M. (2010) · Physical Review D · doi:10.1103/physrevd.81.083534 · Cited by 184
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Metadata
- Authors
- Bean, R., & Doré, O.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2004-04-05
- Volume
- 69
- Issue
- 8
- ISSN
- 0556-2821 (ISSN-L)
- 1550-7998
- 1550-2368
- OpenAlex
- W2070994199
- Cited by
- 320
- References
- 37
- FWCI
- 12.60
- Type
- journal article
- Language
- en
- Open access
- green
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