XIII. Planck 2015 results. Planck 2015 results. Request PDF | Planck 2015 results. However, as in the 2013 analysis, the amplitude of the fluctuation spectrum is found to be higher than inferred from some analyses of rich cluster counts and weak gravitational lensing. This paper presents cosmological results based on full-mission Planck observations of temperature and polarization anisotropies of the cosmic microwave background (CMB) radiation. Note that in this abstract we quote 68% confidence limits on measured parameters and 95% upper limits on other parameters. February 2015; Astronomy ... (We quote 68% errors on measured parameters and 95% limits on other parameters.) Cosmological parameters. The temperature and polarization power spectra are consistent with the standard spatially-flat 6-parameter ΛCDM cosmology with a power-law spectrum of adiabatic scalar perturbations (denoted "base ΛCDM" in this paper). The observational data we use in this work include the JLA sample of type Ia supernovae observation, the Planck 2015 distance priors of cosmic microwave background observation, the baryon acoustic oscillations measurements, and the direct measurement … However, as in the 2013 analysis, the amplitude of the fluctuation spectrum is found to be higher than inferred from some analyses of rich cluster counts and weak gravitational lensing. Combined with the Planck temperature and lensing data, these measurements give a reionization optical depth of τ = 0.066 ± 0.016, corresponding to a reionization redshift of . With four unified, simplified and workable assumptions, a number of useful cosmological formulae can be generated and the current Hubble parameter and current microwave back ground temperature can be fitted accurately. We show that these tensions cannot easily be resolved with simple modifications of the base ΛCDM cosmology. Our results are in very good agreement with the 2013 analysis of the Planck nominal-mission temperature data, but with increased precision. This paper presents cosmological results based on full-mission Planck observations of temperature and polarization anisotropies of the cosmic microwave background (CMB) radiation. From the Planck temperature data combined with Planck lensing, for this cosmology we find a Hubble constant, H0 = (67.8 ± 0.9) km s-1Mpc-1, a matter density parameter Ωm = 0.308 ± 0.012, and a tilted scalar spectral index with ns = 0.968 ± 0.006, consistent with the 2013 analysis. Apart from these tensions, the base ΛCDM cosmology provides an excellent description of the Planck CMB observations and many other astrophysical data sets. (We quote 68% errors on measured parameters and 95% limits on other parameters.) ISSN 0004-6361 Download PDF (13 MB) Abstract. Received 2014 September 26; accepted 2015 January 14; published 2015 February 24 ABSTRACT We examine the consistency of the 9yr WMAP data and the first-release Planck data. @article{Aghanim2020Planck2R, title={Planck 2018 results. We present cosmological parameter results from the final full-mission Planck measurements of the cosmic microwave background (CMB) anisotropies, combining information from the temperature and polarization maps and the lensing reconstruction. These data are consistent with the six-parameter inflationary LCDM cosmology. The Planck results for base ΛCDM are in good agreement with baryon acoustic oscillation data and with the JLA sample of Type Ia supernovae. This paper presents cosmological results based on full-mission Planck observations of temperature and polarization anisotropies of the cosmic microwave background (CMB) radiation. Our results are in very good agreement with the 2013 analysis of the Planck nominal-mission temperature data, but with increased precision. The spatial curvature of our Universe is found to be very close to zero, with | ΩK | < 0.005. XIII. This paper presents cosmological results based on full-mission Planck observations of temperature and polarization anisotropies of the cosmic microwave background (CMB) Our results are in very good agreement with the 2013 analysis of the Planck nominal-mission temperature data, but with increased precision. Cosmological parameters Planck Collaboration: P. A. R. Ade 105 , N. Aghanim 71 , M. Arnaud 87 , M. Ashdown 83;7 , J. Aumont 71 , C. Baccigalupi 103 , A. J. Banday 117;12 , R. B. Barreiro 78 , J. G. Bartlett 1;80 , N. Bartolo 38;79 , E. Battaner 120;121 , R. Battye 81 , K. Benabed 72;116 , A. Benoˆıt 69 , A. Benoit-L´evy 29 ;72 116 , VI. With the proposed assumptions: 1) The intended purpose of ‘lambda’ term can be understood and in future it can be relinquished. Cosmological parameters. The temperature and polarization power spectra are consistent with the standard spatially-flat 6-parameter ΛCDM cosmology with a power-law spectrum of adiabatic scalar perturbations (denoted “base ΛCDM” in this paper). Powered By Scopus® Data, http://dx.doi.org/10.1051/0004-6361/201525830. Cosmological parameters. XIII. On this page you can find a list of Planck publications, ordered as follows. Abstract. When the additional informa- Cited 3469 times in Scopus. 3 Constraints on the parameters of the base bold0mu mumu CDM cosmology from Planck, 4 Comparison of the Planck power spectrum with high-resolution experiments, 5 Comparison of the Planck base CDM model with other astrophysical data sets. We specifically compare sky maps, power spectra, and the inferred Λ cold dark matter (ΛCDM) cosmological parameters. Introduction Since its first discovery by Penzias and Wilson (1965), observations of the cosmic Parametrizing the Universe Rapid advances in observational cosmology have led to the establishment of a precision cosmological model, with many of the key cosmological parameters determined to one or two significant figure accuracy. Compared to the 2015 results, improved measurements of large-scale polarization allow the reionization optical depth to be measured with … We find no evidence for any contribution from isocurvature perturbations or from cosmic defects. Our results are in very good agreement with the 2013 analysis of the Planck nominal-mission Combining Planck data with other astrophysical data, including Type Ia supernovae, the equation of state of dark energy is constrained to w = −1.006 ± 0.045, consistent with the expected value for a cosmological constant. Planck 2015 results: XIII. The Planck 2015 cosmological parameters using both temperature and polarization data are in very good agreement with those from the 2013 release, but with significantly improved precision. We also constraints on annihilating dark matter and on possible deviations from the standard recombination history. From the Planck temperature data combined with Planck lensing, for this cosmology we find a Hubble constant, H0 = (67.8 ± 0.9) km s-1Mpc-1, a matter density parameter Ωm = 0.308 ± 0.012, and a tilted scalar spectral index with ns = 0.968 ± 0.006, consistent with the 2013 analysis. Combined with the Planck temperature and lensing data, these measurements give a reionization optical depth of τ = 0.066 ± 0.016, corresponding to a reionization redshift of \hbox{$z-{\rm re}=8.8{+1.7}-{-1.4}$}. (2016) Planck 2015 results. In neither case do we find no evidence for new physics. Publication year: 2016: Source: Updated November 2015, by O. Lahav (University College London) and A.R. 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