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Cosmic Microwave Background Anisotropies
Open accessAbstract
▪ Abstract Cosmic microwave background (CMB) temperature anisotropies have and will continue to revolutionize our understanding of cosmology. The recent discovery of the previously predicted acoustic peaks in the power spectrum has established a working cosmological model: a critical density universe consisting of mainly dark matter and dark energy, which formed its structure through gravitational instability from quantum fluctuations during an inflationary epoch. Future observations should test this model and measure its key cosmological parameters with unprecedented precision. The phenomenology and cosmological implications of the acoustic peaks are developed in detail. Beyond the peaks, the yet to be detected secondary anisotropies and polarization present opportunities to study the physics of inflation and the dark energy. The analysis techniques devised to extract cosmological information from voluminous CMB data sets are outlined, given their increasing importance in experimental cosmology as a whole.
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“Analysis of the WMAP data puts very strongly pressure on the simple monomial w ( χ ) = G 4 χ 4 at the 3 σ level[18, 40]”
From Phase Transitions in the Early and Present Universe (2006) · cites this paper as [40]
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Metadata
- Authors
- Hu, W., & Dodelson, S.
- Affiliations
- Fermi National Accelerator Laboratory (US)
- Venue
- Annual Review of Astronomy and Astrophysics
- Publisher
- Annual Reviews
- Published
- 2002-09
- Volume
- 40
- Issue
- 1
- Pages
- 171-216
- ISSN
- 0066-4146 (ISSN-L)
- 1545-4282
- OpenAlex
- W2123864481
- Cited by
- 745
- References
- 208
- Citations by year
- 2026: 35 · 2025: 38 · 2024: 38 · 2023: 28 · 2022: 34 · 2021: 27 · 2020: 37 · 2019: 58 · 2018: 25 · 2017: 25 · 2016: 24 · 2015: 29 · 2014: 26 · 2013: 29 · 2012: 18
- FWCI
- 3.64
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Annual Review of Astronomy and Astrophysics (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Dark Matter and Cosmic Phenomena
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
- Keywords
- cosmic microwave background, temperature anisotropy, acoustic peaks, power spectrum, inflation (cosmology), dark energy, dark matter, gravitational instability, quantum fluctuations, secondary anisotropies, CMB polarization, cosmological parameters, structure formation
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