Planck 2013 results. XXIII. Isotropy and statistics of the CMB
Cardiff University · Université Paris-Sud · +97 more institutions
Abstract
The two fundamental assumptions of the standard cosmological model -that the initial fluctuations are statistically isotropic and Gaussian -are rigorously tested using maps of the cosmic microwave background (CMB) anisotropy from the Planck satellite. The detailed results are based on studies of four independent estimates of the CMB that are compared to simulations using a fiducial CDM model and incorporating essential aspects of the Planck measurement process. Deviations from isotropy have been found and demonstrated to be robust against component separation algorithm, mask choice, and frequency dependence. Many of these anomalies were previously observed in the WMAP data, and are now confirmed at similar…
Citation impact
- FWCI
- 64.52
- Percentile
- 100%
- References
- 345
Authors
254- 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
- CMB cold spot
- Cosmic microwave background
- Planck
- Astrophysics
- Asymmetry
- Isotropy
- Spectral density
Funding
- NANational Aeronautics and Space Administration
- USUK Space Agency
- SFScience Foundation Ireland
- PFPartnership for Advanced Computing in Europe AISBL
- CNCentre National d’Etudes SpatialesAward: IN2P3
- TTekes
- UPUniversidad Politécnica de Madrid
- MMax-Planck-Gesellschaft
- CSChina Scholarship Council
- CNCentre National de la Recherche Scientifique
- MDMinisterio de Ciencia e Innovación
- MDMinistério da Ciência, Tecnologia e Ensino Superior
- UDUniversidad de Cantabria
- IDInstituto de Física de Cantabria
- SAScience and Technology Facilities CouncilAward: IN2P3
- FPFundação para a Ciência e a Tecnologia
- INInstitut National de Physique Nucléaire et de Physique des Particules