Winther, H.-A. - Search Results - CERN Document Server

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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. Euclid is a medium-class mission in the Cosmic Vision 2015-2025 programme of the European Space Agency (ESA) that will provide high-resolution optical imaging, as well as near-infrared imaging and spectroscopy, over about 14,000 deg^2 of extragalactic sky. [...]
arXiv:2405.13491.- 2025-04 - 94 p. - Published in : Astron. Astrophys. 697 (2025) A1 Fulltext: 2405.13491 - PDF; publication - PDF;

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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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Chameleons with Field Dependent Couplings / Brax, Philippe ; van de Bruck, Carsten ; Mota, David F ; Nunes, Nelson J ; Winther, Hans A
Certain scalar-tensor theories exhibit the so-called chameleon mechanism, whereby observational signatures of scalar fields are hidden by a combination of self-interactions and interactions with ambient matter. Not all scalar-tensor theories exhibit such a chameleon mechanism, which has been originally found in models with inverse power run-away potentials and field independent couplings to matter. [...]
arXiv:1006.2796.- 2010 - 17 p. - Published in : Phys. Rev. D 82 (2010) 083503 External link: Preprint

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See also: similar author names
1	Winther, H.A.
1	Winther, Hans
23	Winther, Hans A

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