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Measuring dark energy with the shear triplet statistics

Sereno, M.

In: Monthly Notices of the Royal Astronomical Society, 2007, vol. 377, no. 1, p. 229-233

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    Titre
    • Measuring dark energy with the shear triplet statistics
    Auteur
    • Sereno, M.. Institut für Theoretische Physik, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Monthly Notices of the Royal Astronomical Society, 2007, vol. 377, no. 1, p. 229-233. Blackwell Publishing Ltd
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:291071
    Summary
    The shear triplet statistics is a geometric method to measure cosmological parameters with observations in the weak gravitational lensing regime towards massive haloes. Here, this proposal is considered to probe the dark energy equation of state and its time derivative in view of future wide-field galaxy surveys. A survey with a median redshift of ∼0.7 and a total area of ∼10 000 deg2 would be pretty effective in determining the dark matter cosmological density and in putting useful constraints on the dark energy properties