# EFFECT OF MEASUREMENT ERRORS ON PREDICTED COSMOLOGICAL CONSTRAINTS FROM SHEAR PEAK STATISTICS WITH LARGE SYNOPTIC SURVEY TELESCOPE

@article{Bard2013EFFECTOM, title={EFFECT OF MEASUREMENT ERRORS ON PREDICTED COSMOLOGICAL CONSTRAINTS FROM SHEAR PEAK STATISTICS WITH LARGE SYNOPTIC SURVEY TELESCOPE}, author={Deborah J. Bard and Jan Michael Kratochvil and C. L. Chang and M. May and Steven M. Kahn and Yusra AlSayyad and Z. Ahmad and Justin R. Bankert and Andrew J. Connolly and Robert R. Gibson and Kirk Gilmore and Emily Grace and Zolt{\'a}n Haiman and Mark D Hannel and Kevin M. Huffenberger and J. Garrett Jernigan and Lynne Jones and Simon Krughoff and Suzanne Lorenz and Stuart Marshall and Alan Meert and S. Nagarajan and E. Peng and J. Matt Peterson and Andrew P. A Rasmussen and Marina V. Shmakova and N. Sylvestre and N. Todd and M. Young}, journal={The Astrophysical Journal}, year={2013}, volume={774} }

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…

## 15 Citations

Cosmology constraints from shear peak statistics in Dark Energy Survey Science Verification data

- Physics, Geology
- 2016

Shear peak statistics has gained a lot of attention recently as a practical alternative to the two-point statistics for constraining cosmological parameters. We perform a shear peak statistics…

MASKED AREAS IN SHEAR PEAK STATISTICS: A FORWARD MODELING APPROACH

- Physics, Geology
- 2014

The statistics of shear peaks have been shown to provide valuable cosmological information beyond the power spectrum, and will be an important constraint of models of cosmology in forthcoming…

STATISTICAL AND SYSTEMATIC ERRORS IN THE MEASUREMENT OF WEAK-LENSING MINKOWSKI FUNCTIONALS: APPLICATION TO THE CANADA–FRANCE–HAWAII LENSING SURVEY

- Physics
- 2014

The measurement of cosmic shear using weak gravitational lensing is a challenging task that involves a number of complicated procedures. We study in detail the systematic errors in the measurement of…

A New Model to Predict Weak Lensing Peak Counts

- PhysicsProceedings of the International Astronomical Union
- 2014

Abstract Peak statistics from weak gravitational lensing have been shown to be a promising tool for cosmology. Here we propose a new approach to predict weak lensing peak counts. For an arbitrary…

Probing the shape and internal structure of dark matter haloes with the halo-shear–shear three-point correlation function

- Physics
- 2018

Weak lensing three-point statistics are powerful probes of the structure of dark matter halos. We propose to use the correlation of the positions of galaxies with the shapes of background galaxy…

The cosmological information of shear peaks: beyond the abundance

- Physics
- 2013

We study the cosmological information of weak lensing (WL) peaks, focusing on two other statistics besides their abundance: the stacked tangential-shear profiles and the peak-peak correlation…

Weak lensing peak statistics in the era of large scale cosmological surveys

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2018

Weak lensing peak counts are a powerful statistical tool for constraining cosmological parameters. So far, this method has been applied only to surveys with relatively small areas, up to several…

Cosmological constraints from weak lensing peak statistics with Canada–France–Hawaii Telescope Stripe 82 Survey

- Physics
- 2015

We derived constraints on cosmological parameters using weak lensing peak statistics measured on the similar to aEuro parts per thousand 130 deg(2) of the Canada-France-Hawaii Telescope Stripe 82…

Weak lensing mass map and peak statistics in Canada-France-Hawaii Telescope Stripe 82 survey

- Physics
- 2014

We present a weak lensing mass map covering similar to 124 deg(2) of the Canada-France-Hawaii Telescope Stripe 82 Survey (CS82). We study the statistics of rare peaks in the map, including peak…

Introduction to Observational Cosmology

- Physics
- 2016

An array of recent astrophysical observations show us two unresolved mysteries of cosmology; the accelerating expansion of the universe and the existence of dark matter. In order to realize the…

## References

SHOWING 1-10 OF 68 REFERENCES

CONSTRAINING COSMOLOGY WITH HIGH-CONVERGENCE REGIONS IN WEAK LENSING SURVEYS

- Physics
- 2008

We propose to use a simple observable, the fractional area of “hot spots” in weak gravitational lensing mass maps, which are detected with high significance, to determine background cosmological…

Weak lensing from space: first cosmological constraints from three-point shear statistics★

- Physics
- 2010

We use weak lensing data from the Hubble Space Telescope COSMOS survey to measure the second- and third-order moments of the cosmic shear field, estimated from about 450 000 galaxies with average…

Cosmology with the shear-peak statistics

- Physics
- 2010

Weak-lensing searches for galaxy clusters are plagued by low completeness and purity, severely limiting their usefulness for constraining cosmological parameters with the cluster mass function. A…

Evidence of the accelerated expansion of the Universe from weak lensing tomography with COSMOS

- Physics
- 2009

We present a comprehensive analysis of weak gravitational lensing by large-scale structure in the Hubble Space Telescope Cosmic Evolution Survey (COSMOS), in which we combine space-based galaxy shape…

Spurious shear in weak lensing with the large synoptic survey telescope

- Physics
- 2013

The complete 10-year survey from the Large Synoptic Survey Telescope (LSST) will image $\sim$ 20,000 square degrees of sky in six filter bands every few nights, bringing the final survey depth to…

Weak Gravitational Lensing and Its Cosmological Applications

- Physics
- 2008

Weak gravitational lensing is a unique probe of the dark side of the universe: It provides a direct way to map the distribution of dark matter around galaxies and clusters of galaxies as well as on…

Cosmological Parameters from Observations of Galaxy Clusters

- Physics
- 2011

Studies of galaxy clusters have proved crucial in helping to establish the standard model of cosmology, with a Universe dominated by dark matter and dark energy. A theoretical basis that describes…

Intrinsic galaxy shapes and alignments – I. Measuring and modelling COSMOS intrinsic galaxy ellipticities

- Physics
- 2013

The statistical properties of the ellipticities of galaxy images depend on how galaxies
form and evolve, and therefore constrain models of galaxy morphology, which are key
to the removal of the…

STATISTICAL AND SYSTEMATIC ERRORS IN THE MEASUREMENT OF WEAK-LENSING MINKOWSKI FUNCTIONALS: APPLICATION TO THE CANADA–FRANCE–HAWAII LENSING SURVEY

- Physics
- 2014

The measurement of cosmic shear using weak gravitational lensing is a challenging task that involves a number of complicated procedures. We study in detail the systematic errors in the measurement of…

Measuring primordial non-Gaussianity with weak lensing surveys

- Physics
- 2012

Measuring the non-Gaussianity of the initial matter density fluctuations may provide powerful insights into cosmic inflation and the origin of structures. Although current information on primordial…