The DOI matches its Crossref record; 40 of the 41 references it cites were found in a registry or an index.
The evidence for a spatially flat Universe
Open accessAbstract
ABSTRACT We use a new and statistically powerful Planck likelihood to show that the Planck temperature and polarization spectra are consistent with a spatially flat Universe, in contrast to recent claims in the literature. When combined with other astrophysical data, particularly geometrical measurements of baryon acoustic oscillations, our likelihood constrains the Universe to be spatially flat to extremely high precision. We deduce a curvature density parameter ΩK = 0.0004 ± 0.0018 in good agreement with the 2018 results of the Planck team. In the context of inflationary cosmology, the observations offer strong support for models of inflation with a large number of e-foldings and disfavour models of incomplete inflation.
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Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Bartolo, N., et al. (2016) · Astronomy and Astrophysics · doi:10.1051/0004-6361/201525830 · Cited by 10,685
Self-citationInflationary 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
Planck 2013 results. XVI. Cosmological parameters
Ade, P. A. R., Aghanim, N., Armitage-Caplan, C., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., et al. (2014) · Astronomy and Astrophysics · doi:10.1051/0004-6361/201321591 · Cited by 8,459
Self-citationAde, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Bartolo, N., et al. (2016) · Research at the University of Copenhagen (University of Copenhagen) · doi:10.17863/cam.32861 · Cited by 5,299
Self-citationThe Large-Sample Distribution of the Likelihood Ratio for Testing Composite Hypotheses
Wilks, S. S. (1938) · The Annals of Mathematical Statistics · doi:10.1214/aoms/1177732360 · Cited by 3,729
Planck 2018 results. VI. Cosmological parametersPreprint
Planck Collaboration, Aghanim, N., Akrami, Y., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., et al. (2018) · arXiv (Cornell University) · doi:10.48550/arxiv.1807.06209 · Cited by 3,364
Self-citationAlam, S., Ata, M., Bailey, S., Beutler, F., Bizyaev, D., Blazek, J. A., Bolton, A. S., Brownstein, J. R., Burden, A., Chuang, C.-H., et al. (2017) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stx721 · Cited by 3,056
Beutler, F., Blake, C., Colless, M., Jones, D. H., Staveley-Smith, L., Campbell, L., Parker, Q., Saunders, W., & Watson, F. (2011) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2011.19250.x · Cited by 2,590 · cited 1×
“…in Planck Collaboration et al. (2018b); ‘Pantheon’ denotes use of the Pantheon Type Ia supernovae sample of (Scolnic et al. 2015); ‘BAO’ denotes use of the baryonic acoustic oscillation measurements from Beutler et al. (2011); Ross et al. (2015); Alam et al. (2017) as discussed in PCP18 and EG.”
MethodRiess, A. G., Casertano, S., Yuan, W., Macri, L. M., & Scolnic, D. (2019) · The Astrophysical Journal · doi:10.3847/1538-4357/ab1422 · Cited by 2,201
The clustering of the SDSS DR7 main Galaxy sample – I. A 4 per cent distance measure at z=0.15
Ross, A. J., Samushia, L., Howlett, C., Percival, W. J., Burden, A., & Manera, M. (2015) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stv154 · Cited by 1,745
Flagged first, then by citations
1 of the 41 references couldn’t be matched to a known paper.
Research works printed but not linked: 2
- Bond, 1997, MNRAS, 291, L33, 10.1093/mnras/291.1.L33 · DOI
- Linde, 1990, Contemporary Concepts in Physics, Vol. 5
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Hubble tension problem encompassed by phase-space quantum cosmology
Bernardini, A. E. (2026) · Physics Letters B · doi:10.1016/j.physletb.2026.140645
Dixit, A., Yadav, M., Pradhan, A., & Barak, M. S. (2026) · Physics of the Dark Universe · doi:10.1016/j.dark.2026.102423
PEÑA, A. P. (2026) · The European Physical Journal C · doi:10.1140/epjc/s10052-026-16211-z
Metadata
- Authors
- Efstathiou, G., & Gratton, S.
- Affiliations
- University of Cambridge (GB)
- Corresponding author
- Efstathiou, George
- Gratton, Steven
- ORCID
- Efstathiou, George
- Venue
- Monthly Notices of the Royal Astronomical Society: Letters
- Publisher
- Oxford University Press (OUP)
- Published
- 2020-05-27
- Volume
- 496
- Issue
- 1
- Pages
- L91-L95
- ISSN
- 1745-3925 (ISSN-L)
- 1745-3933
- OpenAlex
- W3006133234
- Cited by
- 203
- References
- 41
- Citations by year
- 2026: 18 · 2025: 31 · 2024: 27 · 2023: 33 · 2022: 34 · 2021: 48 · 2020: 12
- FWCI
- 14.26
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Licence
- academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model (vor)
- Locations
- Monthly Notices of the Royal Astronomical Society Letters (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Funders
- Science and Technology Facilities Council (ST/N000927/1)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Noncommutative and Quantum Gravity Theories
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Dark Matter and Cosmic Phenomena
- Keywords
- baryon acoustic oscillations, cosmic inflation
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