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Home > Effect of Measurement Errors on Predicted Cosmological Constraints from Shear Peak Statistics with Large Synoptic Survey Telescope

Effect of Measurement Errors on Predicted Cosmological Constraints from Shear Peak Statistics with Large Synoptic Survey Telescope

Bard, Deborah et al.
Kratochvil, J. M.; Chang, C.; May, M.; Kahn, S. M.; AlSayyad, Y.; Ahmad, Z.; Bankert, J.; Connolly, A.; Gibson, R. R.; Gilmore, K.; Grace, E.; Haiman, Z.; Hannel, M.; Huffenberger, K. M.; Jernigan, J. G.; Jones, L.; Krughoff, S.; Lorenz, S.; Marshall, S.; Meert, A.; Nagarajan, S.; Peng, E.; Peterson, J.; Rasmussen, A. P.; Shmakova, M.; Sylvestre, N.; Todd, N.; Young, M.
Publication Date: 
Friday, August 16, 2013
Citable: 
no
Category: 
Science [1]
Weak Lensing [2]
Image Simulation [3]
The Astrophysical Journal
Volume: 
774 Issue 1
Page #: 
13
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.
http://adsabs.harvard.edu/abs/2013ApJ...774...49B [4]
Reviewed Under: 
LSST Publication Policy (2015 or earlier)
Source URL: https://www.lsst.org/content/effect-measurement-errors-predicted-cosmological-constraints-shear-peak-statistics-large

Links
[1] https://www.lsst.org/category/science
[2] https://www.lsst.org/category/weak-lensing
[3] https://www.lsst.org/category/image-simulation
[4] http://adsabs.harvard.edu/abs/2013ApJ...774...49B