Detalles de publicación
PP 014119
Planck 2013 results. I. Overview of products and scientific results
1 School of Physics and Astronomy, Cardiff University, UK
2 IAC
3 ULL
4 CSIC
The European Space Agency’s Planck satellite, dedicated to studying the early Universe and its subsequent evolution, was launched 14 May
2009 and has been scanning the microwave and submillimetre sky continuously since 12 August 2009. In March 2013, ESA and the Planck
Collaboration released the initial cosmology products based on the first 15.5 months of Planck data, along with a set of scientific and technical
papers and a web-based explanatory supplement. This paper gives an overview of the mission and its performance, the processing, analysis, and
characteristics of the data, the scientific results, and the science data products and papers in the release. The science products include maps of
the cosmic microwave background (CMB) and di use extragalactic foregrounds, a catalogue of compact Galactic and extragalactic sources, and
a list of sources detected through the Sunyaev-Zeldovich e ect. The likelihood code used to assess cosmological models against the Planck data
and a lensing likelihood are described. Scientific results include robust support for the standard six-parameter CDM model of cosmology and
improved measurements of its parameters, including a highly significant deviation from scale invariance of the primordial power spectrum. The
Planck values for these parameters and others derived from them are significantly di erent from those previously determined. Several large-scale
anomalies in the temperature distribution of the CMB, first detected by WMAP, are confirmed with higher confidence. Planck sets new limits on
the number and mass of neutrinos, and has measured gravitational lensing of CMB anisotropies at greater than 25. Planck finds no evidence
for non-Gaussianity in the CMB. Planck’s results agree well with results from the measurements of baryon acoustic oscillations. Planck finds a
lower Hubble constant than found in some more local measures. Some tension is also present between the amplitude of matter fluctuations (8)
derived from CMB data and that derived from Sunyaev-Zeldovich data. The Planck and WMAP power spectra are o set from each other by an average level of about 2% around the first acoustic peak. Analysis of Planck polarization data is not yet mature, therefore polarization results are not released, although the robust detection of E-mode polarization around CMB hot and cold spots is shown graphically.
2009 and has been scanning the microwave and submillimetre sky continuously since 12 August 2009. In March 2013, ESA and the Planck
Collaboration released the initial cosmology products based on the first 15.5 months of Planck data, along with a set of scientific and technical
papers and a web-based explanatory supplement. This paper gives an overview of the mission and its performance, the processing, analysis, and
characteristics of the data, the scientific results, and the science data products and papers in the release. The science products include maps of
the cosmic microwave background (CMB) and di use extragalactic foregrounds, a catalogue of compact Galactic and extragalactic sources, and
a list of sources detected through the Sunyaev-Zeldovich e ect. The likelihood code used to assess cosmological models against the Planck data
and a lensing likelihood are described. Scientific results include robust support for the standard six-parameter CDM model of cosmology and
improved measurements of its parameters, including a highly significant deviation from scale invariance of the primordial power spectrum. The
Planck values for these parameters and others derived from them are significantly di erent from those previously determined. Several large-scale
anomalies in the temperature distribution of the CMB, first detected by WMAP, are confirmed with higher confidence. Planck sets new limits on
the number and mass of neutrinos, and has measured gravitational lensing of CMB anisotropies at greater than 25. Planck finds no evidence
for non-Gaussianity in the CMB. Planck’s results agree well with results from the measurements of baryon acoustic oscillations. Planck finds a
lower Hubble constant than found in some more local measures. Some tension is also present between the amplitude of matter fluctuations (8)
derived from CMB data and that derived from Sunyaev-Zeldovich data. The Planck and WMAP power spectra are o set from each other by an average level of about 2% around the first acoustic peak. Analysis of Planck polarization data is not yet mature, therefore polarization results are not released, although the robust detection of E-mode polarization around CMB hot and cold spots is shown graphically.