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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
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.
Reviewed Under: 
LSST Publication Policy (2015 or earlier)

Financial support for LSST comes from the National Science Foundation (NSF) through Cooperative Agreement No. 1258333, the Department of Energy (DOE) Office of Science under Contract No. DE-AC02-76SF00515, and private funding raised by the LSST Corporation. The NSF-funded LSST Project Office for construction was established as an operating center under management of the Association of Universities for Research in Astronomy (AURA).  The DOE-funded effort to build the LSST camera is managed by the SLAC National Accelerator Laboratory (SLAC).
The National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 to promote the progress of science. NSF supports basic research and people to create knowledge that transforms the future.
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