CERN Accelerating science

CERN Document Server Намерени са 2,031 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 2.06 секунди. 
1.
Euclid preparation. Sensitivity to non-standard particle dark matter model / Euclid Collaboration
The Euclid mission of the European Space Agency will provide weak gravitational lensing and galaxy clustering surveys that can be used to constrain the standard cosmological model and its extensions, with an opportunity to test the properties of dark matter beyond the minimal cold dark matter paradigm. [...]
arXiv:2406.18274 ; TTK-24-26.
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Euclid. IV. The NISP Calibration Unit / Euclid Collaboration
The near-infrared calibration unit (NI-CU) on board Euclid's Near-Infrared Spectrometer and Photometer (NISP) is the first astronomical calibration lamp based on light-emitting diodes (LEDs) to be operated in space. [...]
arXiv:2405.13494.
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Euclid: Constraining linearly scale-independent modifications of gravity with the spectroscopic and photometric primary probes / Euclid Collaboration
The future Euclid space satellite mission will offer an invaluable opportunity to constrain modifications to Einstein's general relativity at cosmic scales. We focus on modified gravity models characterised, at linear scales, by a scale-independent growth of perturbations while featuring different testable types of derivative screening mechanisms at smaller non-linear scales [...]
arXiv:2306.12368.- 2024-10-01 - 22 p. - Published in : Astron. Astrophys. 690 (2024) A133 Fulltext: 2306.12368 - PDF; Publication - PDF; document - PDF;
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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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Gravitational waves $\times$ HI intensity mapping: cosmological and astrophysical applications / Scelfo, Giulio (SISSA, Trieste ; INFN, Trieste ; IFPU, Trieste) ; Spinelli, Marta (INFN, Trieste ; IFPU, Trieste ; Trieste Observ. ; Western Cape U.) ; Raccanelli, Alvise (INFN, Padua ; CERN ; U. Padua, Dept. Phys. Astron.) ; Boco, Lumen (SISSA, Trieste ; INFN, Trieste ; IFPU, Trieste) ; Lapi, Andrea (SISSA, Trieste ; INFN, Trieste ; IFPU, Trieste) ; Viel, Matteo (SISSA, Trieste ; INFN, Trieste ; IFPU, Trieste ; Trieste Observ.)
Two of the most rapidly growing observables in cosmology and astrophysics are gravitational waves (GW) and the neutral hydrogen (HI) distribution. In this work, we investigate the cross-correlation between resolved gravitational wave detections and HI signal from intensity mapping (IM) experiments. [...]
arXiv:2106.09786.- 2022-01-04 - 36 p. - Published in : JCAP 2201 (2022) 004 Fulltext: PDF;
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The quest of CMB spectral distortions to probe the scalar-induced gravitational wave background interpretation in PTA data / Tagliazucchi, Matteo (Bologna U. ; Bologna Observ.) ; Braglia, Matteo (Bologna Observ. ; New York U., CCPP) ; Finelli, Fabio (Bologna Observ. ; INFN, Bologna) ; Pieroni, Mauro (CERN)
Gravitational Waves (GW) sourced by second-order primordial curvature fluctuations are among the favoured models fitting the recent Pulsar Timing Array (PTA) measurement of a Stochastic GW Background (SGWB). [...]
arXiv:2310.08527 ; CERN-TH-2023-191.
- 12 p.
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Monitoring of the radio galaxy M87 during a low emission state from 2012 to 2015 with MAGIC / MAGIC Collaboration
M87 is one of the closest (z=0.00436) extragalactic sources emitting at very-high-energies (VHE, E > 100 GeV). The aim of this work is to locate the region of the VHE gamma-ray emission and to describe the observed broadband spectral energy distribution (SED) during the low VHE gamma-ray state. [...]
arXiv:2001.01643.- 2020-03-11 - 12 p. - Published in : Mon. Not. R. Astron. Soc. 492 (2020) 5354-5365 Fulltext: PDF;
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Constraints on dark photon dark matter from Lyman-$\alpha$ forest simulations and an ultra-high signal-to-noise quasar spectrum / Trost, Andrea (Trieste U. ; Trieste Observ. ; INFN, Trieste) ; Bolton, James S. (Nottingham U.) ; Caputo, Andrea (CERN) ; Liu, Hongwan (Boston U. ; Chicago U., KICP ; Fermilab) ; Cristiani, Stefano (Trieste Observ. ; INFN, Trieste ; IFPU, Trieste) ; Viel, Matteo (Trieste Observ. ; INFN, Trieste ; IFPU, Trieste ; SISSA, Trieste)
The ultralight dark photon is a well-motivated, hypothetical dark matter candidate. [...]
arXiv:2410.02858 ; FERMILAB-PUB-24-0739-V.
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Fermilab Library Server - Fulltext
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Exploring Cosmic Origins with CORE: Inflation / Finelli, Fabio (Bologna Observ. ; INFN, Bologna) ; Bucher, Martin (APC, Paris) ; Achúcarro, Ana (Leiden U. ; Basque U., Bilbao) ; Ballardini, Mario (Bologna U. ; Bologna Observ. ; INFN, Bologna) ; Bartolo, Nicola (Padua U. ; INFN, Padua ; Padua Observ.) ; Baumann, Daniel (Cambridge U., DAMTP ; Amsterdam U.) ; Clesse, Sébastien (Aachen, Tech. Hochsch.) ; Errard, Josquin (ILP, Paris ; Paris U., VI-VII) ; Handley, Will (Cambridge U. ; Cambridge U., KICC) ; Hindmarsh, Mark (Sussex U. ; Helsinki Inst. of Phys. ; Helsinki U.) et al. /CORE
We forecast the scientific capabilities to improve our understanding of cosmic inflation of CORE, a proposed CMB space satellite submitted in response to the ESA fifth call for a medium-size mission opportunity. The CORE satellite will map the CMB anisotropies in temperature and polarization in 19 frequency channels spanning the range 60-600 GHz. [...]
arXiv:1612.08270.- 2018-04-05 - 100 p. - Published in : JCAP 04 (2018) 016 Fulltext: PDF;
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Planck 2015 results. XVII. Constraints on primordial non-Gaussianity / Planck Collaboration
The Planck full mission cosmic microwave background(CMB) temperature and E-mode polarization maps are analysed to obtain constraints on primordial non-Gaussianity(NG). Using three classes of optimal bispectrum estimators - separable template-fitting (KSW), binned, and modal - we obtain consistent values for the local, equilateral, and orthogonal bispectrum amplitudes, quoting as our final result from temperature alone fNL^local=2.5+\-5.7, fNL^equil=-16+\-70 and fNL^ortho=-34+\-33(68%CL) [...]
arXiv:1502.01592.- 2016-09-20 - 66 p. - Published in : Astron. Astrophys. 594 (2016) A17 Fulltext: PDF; External link: Preprint

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