The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.
Suppressing the lower multipoles in the CMB anisotropies
Open accessAbstract
The Cosmic Microwave Background (CMB) anisotropy power on the largest angular scales observed both by WMAP and COBE DMR appears to be lower than the one predicted by the standard model of cosmology with almost scale free primordial perturbations arising from a period of inflation. One can either interpret this as a manifestation of cosmic variance or as a physical effect that requires an explanation. We discuss various mechanisms that could be responsible for the suppression of such low ℓ multipoles. Features in the late time evolution of metric fluctuations may do this via the integral Sachs–Wolfe effect. Another possibility is a suppression of power at large scales in the primordial spectrum induced by a fast rolling stage in the evolution of the inflaton field at the beginning of the last 65 e-folds of inflation. We illustrate this effect in a simple model of inflation and fit the resulting CMB spectrum to the observed temperature–temperature (TT) power spectrum. We find that the WMAP observations suggest a cutoff at k c = 4.9 +1.3 −1.6 × 10 −4 Mpc −1 at 68% confidence, but only an upper limit of k c < 7.4 × 10 −4 Mpc −1 at 95%. Thus, although it improves the fit of the data, the presence of a cutoff in power spectrum is only required at a level close to 2σ. This is obtained with a prior which corresponds to equal distribution w.r.t. k c . We discuss how other choices (such as an equal distribution w.r.t. ln k c , which is natural in the context of inflation) can affect the statistical interpretation.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Inflationary universe: A possible solution to the horizon and flatness problems
Guth, A. H. (1981) · Physical Review D · doi:10.1103/physrevd.23.347 · Cited by 9,983
A new type of isotropic cosmological models without singularity
Starobinsky, A. A. (1980) · Physics Letters B · doi:10.1016/0370-2693(80)90670-x · Cited by 7,677
Linde, A. D. (1982) · Physics Letters B · doi:10.1016/0370-2693(82)91219-9 · Cited by 6,405
Self-citationCosmology for Grand Unified Theories with Radiatively Induced Symmetry Breaking
Albrecht, A., & Steinhardt, P. J. (1982) · Physical Review Letters · doi:10.1103/physrevlett.48.1220 · Cited by 4,981
Bennett, C. L., Halpern, M., Hinshaw, G., Jarosik, N., Kogut, A., Limon, M., Meyer, S. S., Page, L., Spergel, D. N., Tucker, G. S., et al. (2003) · The Astrophysical Journal Supplement Series · doi:10.1086/377253 · Cited by 4,860
False vacuum inflation with Einstein gravity
Copeland, E. J., Liddle, A. R., Lyth, D. H., Stewart, E. D., & Wands, D. (1994) · Physical Review D · doi:10.1103/physrevd.49.6410 · Cited by 1,077
Is the low cosmic microwave background quadrupole a signature of spatial curvature?
Efstathiou, G. (2003) · Monthly Notices of the Royal Astronomical Society · doi:10.1046/j.1365-8711.2003.06940.x · Cited by 210
Cited by
Planck 2018 results: X. Constraints on inflation
Planck Collaboration, Akrami, Y., Arroja, F., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., et al. (2020) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201833887 · Cited by 2,442
Significance of the largest scale CMB fluctuations in WMAP
de Oliveira-Costa, A., Tegmark, M., Zaldarriaga, M., & Hamilton, A. (2004) · Physical Review D · doi:10.1103/physrevd.69.063516 · Cited by 651
Luminet, J.-P., Weeks, J. R., Riazuelo, A., Lehoucq, R., & Uzan, J.-P. (2003) · Nature · doi:10.1038/nature01944 · Cited by 424
What does inflation really predict?
Tegmark, M. (2005) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2005/04/001 · Cited by 216
The evidence for a spatially flat Universe
Efstathiou, G., & Gratton, S. (2020) · Monthly Notices of the Royal Astronomical Society: Letters · doi:10.1093/mnrasl/slaa093 · Cited by 203
Emir Gümrükçüo, A., Contaldi, C. R., & Peloso, M. (2007) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2007/11/005 · Cited by 185
Self-citationCurvature constraints from large scale structure
Dio, E. D., Montanari, F., Raccanelli, A., Durrer, R., Kamionkowski, M., & Lesgourgues, J. (2016) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2016/06/013 · Cited by 61
Metadata
- Authors
- Contaldi, C. R., Peloso, M., Kofman, L., & Linde, A.
- Venue
- Journal of Cosmology and Astroparticle Physics
- Publisher
- IOP Publishing
- Published
- 2003-07-04
- Volume
- 2003
- Issue
- 07
- Pages
- 002-002
- ISSN
- 1475-7508 (ISSN-L)
- 1475-7516
- OpenAlex
- W1978364516
- Cited by
- 388
- References
- 7
- FWCI
- 17.40
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
