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CERN Document Server 2,044 notices trouvées  1 - 10suivantfin  aller vers la notice: La recherche a duré 1.19 secondes. 
1.
Planck 2015 results. XXV. Diffuse low-frequency Galactic foregrounds / Planck Collaboration
(abridged) We discuss the Galactic foreground emission between 20 and 100GHz based on observations by Planck/WMAP. The Commander component-separation tool has been used to separate the various astrophysical processes in total intensity. [...]
arXiv:1506.06660.- 2016-09-20 - 45 p. - Published in : Astron. Astrophys. 594 (2016) A25 Fulltext: PDF; External link: Preprint
2.
Planck intermediate results. XXX. The angular power spectrum of polarized dust emission at intermediate and high Galactic latitudes / Planck Collaboration
The polarized thermal emission from Galactic dust is the main foreground present in measurements of the polarization of the cosmic microwave background (CMB) at frequencies above 100GHz. We exploit the Planck HFI polarization data from 100 to 353GHz to measure the dust angular power spectra $C_\ell^{EE,BB}$ over the range $40<\ell<600$. [...]
arXiv:1409.5738.- 2016-02-09 - 25 p. - Published in : Astron. Astrophys. 586 (2016) A133 Fulltext: PDF; External link: Nature article
3.
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
4.
Planck 2015 results. V. LFI calibration / Planck Collaboration
We present a description of the pipeline used to calibrate the Planck Low Frequency Instrument (LFI) timelines into thermodynamic temperatures for the Planck 2015 data release, covering 4 years of uninterrupted operations. As in the 2013 data release, our calibrator is provided by the spin-synchronous modulation of the CMB dipole, exploiting both the orbital and solar components. [...]
arXiv:1505.08022.- 2016-09-20 - 24 p. - Published in : Astron. Astrophys. 594 (2016) A5 Fulltext: PDF; External link: Preprint
5.
Planck 2013 results. XXXI. Consistency of the Planck data / Planck Collaboration
The Planck design and scanning strategy provide many levels of redundancy that can be exploited to provide tests of internal consistency. One of the most important is the comparison of the 70 GHz (amplifier) and 100 GHz (bolometer) channels. [...]
arXiv:1508.03375.- 2014 - 27 p. - Published in : Astron. Astrophys. 571 (2014) A31 External links: EDP Sciences Free Access article; Fulltext
6.
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
7.
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
8.
Planck 2015 results. XI. CMB power spectra, likelihoods, and robustness of parameters / Planck Collaboration
This paper presents the Planck 2015 likelihoods, statistical descriptions of the 2-point correlation functions of CMB temperature and polarization. They use the hybrid approach employed previously: pixel-based at low multipoles, $\ell$, and a Gaussian approximation to the distribution of cross-power spectra at higher $\ell$. [...]
arXiv:1507.02704.- 2016-09-20 - 99 p. - Published in : Astron. Astrophys. 594 (2016) A11 Fulltext: PDF; External link: Preprint
9.
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
10.
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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