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    Effect of measurement errors on predicted cosmological constraints from shear peak statistics with large synoptic survey telescope

    Access Status
    Open access via publisher
    Authors
    Bard, D.
    Kratochvil, J.
    Chang, C.
    May, M.
    Kahn, S.
    Alsayyad, Y.
    Ahmad, Ziad
    Bankert, J.
    Connolly, A.
    Gibson, R.
    Gilmore, K.
    Grace, E.
    Haiman, Z.
    Hannel, M.
    Huffenberger, K.
    Jernigan, J.
    Jones, L.
    Krughoff, S.
    Lorenz, S.
    Marshall, S.
    Meert, A.
    Nagarajan, S.
    Peng, E.
    Peterson, J.
    Rasmussen, A.
    Shmakova, M.
    Sylvestre, N.
    Todd, N.
    Young, M.
    Date
    2013
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Bard, D. and Kratochvil, J. and Chang, C. and May, M. and Kahn, S. and Alsayyad, Y. and Ahmad, Z. et al. 2013. Effect of measurement errors on predicted cosmological constraints from shear peak statistics with large synoptic survey telescope. Astrophysical Journal. 774 (1).
    Source Title
    Astrophysical Journal
    DOI
    10.1088/0004-637X/774/1/49
    ISSN
    0004-637X
    URI
    http://hdl.handle.net/20.500.11937/18076
    Collection
    • Curtin Research Publications
    Abstract

    We study the effect of galaxy shape measurement errors on predicted cosmological constraints from the statistics of shear peak counts with the Large Synoptic Survey Telescope (LSST). We use the LSST Image Simulator in combination with cosmological N-body simulations to model realistic shear maps for different cosmological models. We include both galaxy shape noise and, for the first time, measurement errors on galaxy shapes. We find that the measurement errors considered have relatively little impact on the constraining power of shear peak counts for LSST.

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