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CERN Document Server 2,044 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 1.81 δευτερόλεπτα. 
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Planck 2013 results. XX. Cosmology from Sunyaev-Zeldovich cluster counts / Planck Collaboration
We present constraints on cosmological parameters using number counts as a function of redshift for a sub-sample of 189 galaxy clusters from the Planck SZ (PSZ) catalogue. The PSZ is selected through the signature of the Sunyaev--Zeldovich (SZ) effect, and the sub-sample used here has a signal-to-noise threshold of seven, with each object confirmed as a cluster and all but one with a redshift estimate. [...]
arXiv:1303.5080; CERN-PH-TH-2013-133; CERN-PH-TH-2013-133.- 2014-10-29 - 20 p. - Published in : Astron. Astrophys. 571 (2014) A20 Fulltext: PDF; External links: Preprint; EDP Sciences Free Access article
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Planck 2013 results. XV. CMB power spectra and likelihood / Planck collaboration
We present the Planck likelihood, a complete statistical description of the two-point correlation function of the CMB temperature fluctuations. We use this likelihood to derive the Planck CMB power spectrum over three decades in l, covering 2 <= l <= 2500 [...]
arXiv:1303.5075; CERN-PH-TH-2013-128; CERN-PH-TH-2013-128.- 2014-10-29 - 60 p. - Published in : Astron. Astrophys. 571 (2014) A15 Fulltext: PDF; External links: Preprint; EDP Sciences Free Access article
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Planck 2013 results. XVI. Cosmological parameters / Planck Collaboration
We present the first results based on Planck measurements of the CMB temperature and lensing-potential power spectra. The Planck spectra at high multipoles are extremely well described by the standard spatially-flat six-parameter LCDM cosmology. [...]
arXiv:1303.5076; CERN-PH-TH-2013-129; CERN-PH-TH-2013-129.- 2014-10-29 - 66 p. - Published in : Astron. Astrophys. 571 (2014) A16 Fulltext: PDF; External links: Preprint; EDP Sciences Free Access article
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Planck 2013 results. XXIII. Isotropy and Statistics of the CMB / Planck Collaboration
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. Deviations from isotropy have been found and demonstrated to be robust against component separation algorithm, mask choice and frequency dependence. [...]
arXiv:1303.5083; CERN-PH-TH-2013-136; CERN-PH-TH-2013-136.- 2014-10-29 - 48 p. - Published in : Astron. Astrophys. 571 (2014) A23 Fulltext: PDF; External links: Preprint; EDP Sciences Free Access article
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Planck 2013 results. XXI. All-sky Compton parameter power spectrum and high-order statistics / Planck collaboration
We have constructed the first all-sky map of the thermal Sunyaev-Zeldovich (tSZ) effect by applying specifically tailored component separation algorithms to the 100 to 857 GHz frequency channel maps from the Planck survey. These maps show an obvious galaxy cluster tSZ signal that is well matched with blindly detected clusters in the Planck SZ catalogue. [...]
arXiv:1303.5081; CERN-PH-TH-2013-134; CERN-PH-TH-2013-134.- 2014-10-29 - 18 p. - Published in : Astron. Astrophys. 571 (2014) A21 Fulltext: PDF; External links: Preprint; EDP Sciences Free Access article
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Planck 2013 results. XIX. The integrated Sachs-Wolfe effect / Planck Collaboration
Based on CMB maps from the 2013 Planck Mission data release, this paper presents the detection of the ISW effect, i.e., the correlation between the CMB and large-scale evolving gravitational potentials. The significance of detection ranges from 2 to 4 sigma, depending on which method is used. [...]
arXiv:1303.5079; CERN-PH-TH-2013-132; CERN-PH-TH-2013-132.- 2014-10-29 - 23 p. - Published in : Astron. Astrophys. 571 (2014) A19 Fulltext: PDF; External links: Preprint; EDP Sciences Free Access article
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Planck 2013 Results. XXIV. Constraints on primordial non-Gaussianity / Planck Collaboration
The Planck nominal mission cosmic microwave background (CMB) maps yield unprecedented constraints on primordial non-Gaussianity (NG). Using three optimal bispectrum estimators, separable template-fitting (KSW), binned, and modal, we obtain consistent values for the primordial local, equilateral, and orthogonal bispectrum amplitudes, quoting as our final result fNL^local= 2.7+/-5.8, fNL^equil= -42+/-75, and fNL^ortho= -25+\-39 (68% CL statistical). [...]
arXiv:1303.5084; CERN-PH-TH-2013-137; CERN-PH-TH-2013-137.- 2014-10-29 - 58 p. - Published in : Astron. Astrophys. 571 (2014) A24 Fulltext: PDF; External links: Preprint; EDP Sciences Free Access article
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Planck 2013 results. XXVIII. The Planck Catalogue of Compact Sources / Planck Collaboration
The Planck Catalogue of Compact Sources (PCCS) is the catalogue of sources detected in the first 15 months of Planck operations, the "nominal" mission. It consists of nine single-frequency catalogues of compact sources, both Galactic and extragalactic, detected over the entire sky. [...]
arXiv:1303.5088; CERN-PH-TH-2013-140; CERN-PH-TH-2013-140.- 2014-10-29 - 22 p. - Published in : Astron. Astrophys. 571 (2014) A28 Fulltext: PDF; External links: Preprint; EDP Sciences Free Access article
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Planck 2013 results. XVII. Gravitational lensing by large-scale structure / Planck Collaboration
On the arcminute angular scales probed by Planck, the CMB anisotropies are gently perturbed by gravitational lensing. Here we present a detailed study of this effect, detecting lensing independently in the 100, 143, and 217GHz frequency bands with an overall significance of greater than 25sigma. [...]
arXiv:1303.5077; CERN-PH-TH-2013-130; CERN-PH-TH-2013-130.- 2014-10-29 - 39 p. - Published in : Astron. Astrophys. 571 (2014) A17 Fulltext: PDF; External links: Preprint; EDP Sciences Free Access article
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Planck 2013 results. XVIII. Gravitational lensing-infrared background correlation / Planck Collaboration
The multi-frequency capability of the Planck satellite provides information both on the integrated history of star formation (via the cosmic infrared background, or CIB) and on the distribution of dark matter (via the lensing effect on the cosmic microwave background, or CMB). The conjunction of these two unique probes allows us to measure directly the connection between dark and luminous matter in the high redshift (1 < z <3) Universe. [...]
arXiv:1303.5078; CERN-PH-TH-2013-131; CERN-PH-TH-2013-131.- 2014-10-29 - 24 p. - Published in : Astron. Astrophys. 571 (2014) A18 External links: Preprint; EDP Sciences Free Access article
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