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CERN Document Server Pronađeno je 2,047 zapisa  1 - 10slijedećikraj  idi na zapis: Pretraživanje je potrajalo 0.69 sekundi 
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Non-Gaussianity as a Probe of the Physics of the Primordial Universe and the Astrophysics of the Low Redshift Universe / Komatsu, E. (Texas U. ; Tokyo U.) ; Afshordi, N. (Perimeter Inst. Theor. Phys.) ; Bartolo, N. (Padua U.) ; Baumann, D. (Harvard U.) ; Bond, J.R. (Toronto U.) ; Buchbinder, E.I. (Perimeter Inst. Theor. Phys.) ; Byrnes, C.T. (Heidelberg U.) ; Chen, Xingang (MIT) ; Chung, D.J.H. (Wisconsin U., Madison) ; Cooray, A. (UC, Irvine) et al.
A new and powerful probe of the origin and evolution of structures in the Universe has emerged and been actively developed over the last decade. [...]
arXiv:0902.4759 ; CERN-PH-TH-2009-103. - 2009. - 8 p.
Preprint - Full text
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2.
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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. 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. XXV. Searches for cosmic strings and other topological defects / Planck Collaboration
Planck data have been used to provide stringent new constraints on cosmic strings and other defects. We describe forecasts of the CMB power spectrum induced by cosmic strings, calculating these from network models and simulations using line-of-sight Boltzmann solvers. [...]
arXiv:1303.5085; CERN-PH-TH-2013-138; CERN-PH-TH-2013-138.- 2014-10-29 - 21 p. - Published in : Astron. Astrophys. 571 (2014) A25 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. 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 2015. XX. Constraints on inflation / Planck Collaboration
We present the implications for cosmic inflation of the Planck measurements of the cosmic microwave background (CMB) anisotropies in both temperature and polarization based on the full Planck survey. The Planck full mission temperature data and a first release of polarization data on large angular scales measure the spectral index of curvature perturbations to be $n_\mathrm{s} = 0.968 \pm 0.006$ and tightly constrain its scale dependence to $d n_s/d \ln k =-0.003 \pm 0.007$ when combined with the Planck lensing likelihood. [...]
arXiv:1502.02114.- 2016-09-20 - 65 p. - Published in : Astron. Astrophys. 594 (2016) A20 Fulltext: PDF; External link: Preprint
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Planck 2013 results. XXIX. Planck catalogue of Sunyaev-Zeldovich sources / Planck Collaboration
We describe the all-sky Planck catalogue of clusters and cluster candidates derived from Sunyaev--Zeldovich (SZ) effect detections using the first 15.5 months of Planck satellite observations. The catalogue contains 1227 entries, making it over six times the size of the Planck Early SZ (ESZ) sample and the largest SZ-selected catalogue to date. [...]
arXiv:1303.5089; CERN-PH-TH-2013-141; CERN-PH-TH-2013-141.- 2014-10-29 - 41 p. - Published in : Astron. Astrophys. 571 (2014) A29 Fulltext: PDF; External links: Preprint; EDP Sciences Free Access article
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Planck 2015 results. IX. Diffuse component separation: CMB maps / Planck Collaboration
We present foreground-reduced CMB maps derived from the full Planck data set in both temperature and polarization. Compared to the corresponding Planck 2013 temperature sky maps, the total data volume is larger by a factor of 3.2 for frequencies between 30 and 70 GHz, and by 1.9 for frequencies between 100 and 857 GHz. [...]
arXiv:1502.05956.- 2016-09-20 - 42 p. - Published in : Astron. Astrophys. 594 (2016) A9 Fulltext: PDF; External link: Preprint
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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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