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CERN Accelerating science

CERN Document Server 58 records found  1 - 10nextend  jump to record: Search took 0.71 seconds. 
1.
Euclid. I. Overview of the Euclid mission / Euclid Collaboration
The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. [...]
arXiv:2405.13491.
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Fulltext
2.
Updated design of the CMB polarization experiment satellite LiteBIRD / Sugai, H. (Tokyo U., IPMU) ; Ade, P.A.R. (Cardiff U.) ; Akiba, Y. (KEK, Tsukuba ; Sokendai, Tsukuba) ; Alonso, D. (Oxford U.) ; Arnold, K. (UC, San Diego) ; Aumont, J. (IRAP, Toulouse) ; Austermann, J. (NIST, Boulder) ; Baccigalupi, C. (CNR, Italy ; INFN, Trieste ; SISSA, Trieste) ; Banday, A.J. (IRAP, Toulouse) ; Banerji, R. (Oslo U.) et al.
Recent developments of transition-edge sensors (TESs), based on extensive experience in ground-based experiments, have been making the sensor techniques mature enough for their application on future satellite CMB polarization experiments. LiteBIRD is in the most advanced phase among such future satellites, targeting its launch in Japanese Fiscal Year 2027 (2027FY) with JAXA's H3 rocket. [...]
arXiv:2001.01724.- 2020-01-27 - 11 p. - Published in : J. Low Temp. Phys. 199 (2020) 1107-1117 Fulltext: s10909-019-02329-w - PDF; 2001.01724 - PDF;
3.
Planck 2018 results. I. Overview and the cosmological legacy of Planck / Planck Collaboration
The European Space Agency's Planck satellite, which was dedicated to studying the early Universe and its subsequent evolution, was launched on 14 May 2009. It scanned the microwave and submillimetre sky continuously between 12 August 2009 and 23 October 2013, producing deep, high-resolution, all-sky maps in nine frequency bands from 30 to 857GHz. [...]
arXiv:1807.06205.- 2020-09-01 - 56 p. - Published in : Astron. Astrophys. 641 (2020) A1 Fulltext: 1807.06205 - PDF; arXiv:1807.06205 - PDF;
4.
Pre-Inflationary Relics in the CMB? / Gruppuso, A. (IASF, Bologna ; INFN, Bologna) ; Kitazawa, N. (Tokyo Metropolitan U.) ; Mandolesi, N. (Ferrara U. ; INFN, Ferrara ; IASF, Bologna) ; Natoli, P. (Ferrara U. ; INFN, Ferrara) ; Sagnotti, A. (CERN ; Pisa, Scuola Normale Superiore ; INFN, Pisa)
String Theory and Supergravity allow, in principle, to follow the transition of the inflaton from pre-inflationary fast roll to slow roll. This introduces an infrared depression in the primordial power spectrum that might have left an imprint in the CMB anisotropy, if it occurred at accessible wavelengths. [...]
CERN-PH-TH-2015-181; arXiv:1508.00411.- Geneva : CERN, 2016-03 - 6 p. - Published in : Phys. Dark Universe 11 (2016) 68-73 Preprint: PDF; External link: Preprint
5.
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
6.
Planck 2015 results. XXVI. The Second Planck Catalogue of Compact Sources / Planck Collaboration
The Second Planck Catalogue of Compact Sources is a catalogue of sources detected in single-frequency maps from the full duration of the Planck mission and supersedes previous versions of the Planck compact source catalogues. It consists of compact sources, both Galactic and extragalactic, detected over the entire sky. [...]
arXiv:1507.02058.- 2016-09-20 - 39 p. - Published in : Astron. Astrophys. 594 (2016) A26 Fulltext: PDF; External link: Preprint
7.
Observational Hints of a Pre--Inflationary Scale? / Gruppuso, A. (Bologna Observ. ; INFN, Bologna) ; Sagnotti, A. (CERN ; Pisa, Scuola Normale Superiore ; INFN, Pisa)
We argue that the lack of power exhibited by cosmic microwave background (CMB) anisotropies at large angular scales might be linked to the onset of inflation. We highlight observational features and theoretical hints that support this view, and present a preliminary estimate of the physical scale that would underlie the phenomenon..
CERN-PH-TH-2015-147; arXiv:1506.08093; CERN-PH-TH-2015-147.- Geneva : CERN, 2015-09-28 - 8 p. - Published in : Int. J. Mod. Phys. D 24 (2015) 1544008 Preprint: PDF; External link: Preprint
8.
Planck 2015 results. XVI. Isotropy and statistics of the CMB / Planck Collaboration
We test the statistical isotropy and Gaussianity of the cosmic microwave background (CMB) anisotropies using observations made by the Planck satellite. Our results are based mainly on the full Planck mission for temperature, but also include some polarization measurements. [...]
arXiv:1506.07135.- 2016-09-20 - 62 p. - Published in : Astron. Astrophys. 594 (2016) A16 Fulltext: PDF; External link: Preprint
9.
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
10.
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

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106 Gruppuso, A
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