  The statistics of peak counts in reconstructed shear maps contain information
beyond the power spectrum, and can improve cosmological constraints from
measurements of the power spectrum alone if systematic errors can be
controlled. 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.
