Planck 2013 results. XXII. Constraints on inflation
Cardiff University · Université Paris-Sud · +98 more institutions
Abstract
We analyse the implications of the Planck data for cosmic inflation. The Planck nominal mission temperature anisotropy measurements, combined with the WMAP large-angle polarization, constrain the scalar spectral index to be ns = 0.9603 ± 0.0073, ruling out exact scale invariance at over 5 s. Planck establishes an upper bound on the tensor-to-scalar ratio of r< 0.11 (95% CL). The Planck data thus shrink the space of allowed standard inflationary models, preferring potentials with V>< 0. Exponential potential models, the simplest hybrid inflationary models, and monomial potential models of degree n = 2 do not provide a good fit to the data. Planck does not find statistically significant running of the…
Citation impact
- FWCI
- 140.98
- Percentile
- 100%
- References
- 654
Authors
243- PAP. A. R. AdeCorresponding
Cardiff University
- NAN. Aghanim
Université Paris-Sud, Centre National de la Recherche Scientifique, Institut d'Astrophysique Spatiale
- CAC. Armitage-Caplan
University of Oxford
- MAM. Arnaud
Centre National de la Recherche Scientifique, Délégation Paris 7, Université Paris Cité, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Astrophysique, Instrumentation et Modélisation, CEA Paris-Saclay, Institut de Recherche sur les Lois Fondamentales de l'Univers
- MAM. Ashdown
University of Cambridge
Topics & keywords
- Physics
- Planck
- Astrophysics
- Inflation (cosmology)
- Astronomy
- Theoretical physics
- Decent work and economic growth
Funding
- NANational Aeronautics and Space Administration
- USUK Space Agency
- ESEuropean Space Agency
- SFScience Foundation Ireland
- PFPartnership for Advanced Computing in Europe AISBL
- CNCentre National d’Etudes SpatialesAward: IN2P3
- TTekes
- MMax-Planck-Gesellschaft
- CSChina Scholarship Council
- CNCentre National de la Recherche Scientifique
- MDMinisterio de Ciencia e Innovación
- MDMinistério da Ciência, Tecnologia e Ensino Superior
- SAScience and Technology Facilities CouncilAward: IN2P3
- FPFundação para a Ciência e a Tecnologia
- INInstitut National de Physique Nucléaire et de Physique des Particules