skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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

Abstract

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 analysis of the Dark Energy Survey (DES) Science Verification (SV) data, using weak gravitational lensing measurements from a 139 deg2 field. We measure the abundance of peaks identified in aperture mass maps, as a function of their signal-to-noise ratio, in the signal-to-noise range 0 < S/N < 4 . To predict the peak counts as a function of cosmological parameters, we use a suite of N-body simulations spanning 158 models with varying Ωm and σ8, fixing w = –1, Ωb = 0.04, h = 0.7 and ns = 1, to which we have applied the DES SV mask and redshift distribution. In our fiducial analysis we measure σ8(Ωm/0.3)0.6 = 0.77 ± 0.07, after marginalizing over the shear multiplicative bias and the error on the mean redshift of the galaxy sample. We introduce models of intrinsic alignments, blending and source contamination by cluster members. These models indicate that peaks with S/N > 4 would require significant corrections, which is why we do not include them in our analysis. We compare our results tomore » the cosmological constraints from the two-point analysis on the SV field and find them to be in good agreement in both the central value and its uncertainty. Lastly, we discuss prospects for future peak statistics analysis with upcoming DES data.« less

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); The Ohio State Univ., Columbus, OH (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
The DES Collaboration
OSTI Identifier:
1351749
Alternate Identifier(s):
OSTI ID: 1254143; OSTI ID: 1360807; OSTI ID: 1602520
Report Number(s):
BNL-113770-2017-JA; FERMILAB-PUB-15-566-AE; arXiv:1603.05040
Journal ID: ISSN 0035-8711; TRN: US1701708
Grant/Contract Number:  
SC0012704; AC02-76SF00515; AC02-07CH11359; SC0011726
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 463; Journal Issue: 4; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; gravitational lensing: weak; methods: data analysis; methods: statistical; cosmological parameter; cosmology: observations; dark matter; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Kacprzak, T., Kirk, D., Friedrich, O., Amara, A., Refregier, A., Marian, L., Dietrich, J. P., Suchyta, E., Aleksić, J., Bacon, D., Becker, M. R., Bonnett, C., Bridle, S. L., Chang, C., Eifler, T. F., Hartley, W. G., Huff, E. M., Krause, E., MacCrann, N., Melchior, P., Nicola, A., Samuroff, S., Sheldon, E., Troxel, M. A., Weller, J., Zuntz, J., Abbott, T. M. C., Abdalla, F. B., Armstrong, R., Benoit-Lévy, A., Bernstein, G. M., Bernstein, R. A., Bertin, E., Brooks, D., Burke, D. L., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Castander, F. J., Crocce, M., D'Andrea, C. B., da Costa, L. N., Desai, S., Diehl, H. T., Evrard, A. E., Neto, A. Fausti, Flaugher, B., Fosalba, P., Frieman, J., Gerdes, D. W., Goldstein, D. A., Gruen, D., Gruendl, R. A., Gutierrez, G., Honscheid, K., Jain, B., James, D. J., Jarvis, M., Kuehn, K., Kuropatkin, N., Lahav, O., Lima, M., March, M., Marshall, J. L., Martini, P., Miller, C. J., Miquel, R., Mohr, J. J., Nichol, R. C., Nord, B., Plazas, A. A., Romer, A. K., Roodman, A., Rykoff, E. S., Sanchez, E., Scarpine, V., Schubnell, M., Sevilla-Noarbe, I., Smith, R. C., Soares-Santos, M., Sobreira, F., Swanson, M. E. C., Tarle, G., Thomas, D., Vikram, V., Walker, A. R., and Zhang, Y. Cosmology constraints from shear peak statistics in Dark Energy Survey Science Verification data. United States: N. p., 2016. Web. doi:10.1093/mnras/stw2070.
Kacprzak, T., Kirk, D., Friedrich, O., Amara, A., Refregier, A., Marian, L., Dietrich, J. P., Suchyta, E., Aleksić, J., Bacon, D., Becker, M. R., Bonnett, C., Bridle, S. L., Chang, C., Eifler, T. F., Hartley, W. G., Huff, E. M., Krause, E., MacCrann, N., Melchior, P., Nicola, A., Samuroff, S., Sheldon, E., Troxel, M. A., Weller, J., Zuntz, J., Abbott, T. M. C., Abdalla, F. B., Armstrong, R., Benoit-Lévy, A., Bernstein, G. M., Bernstein, R. A., Bertin, E., Brooks, D., Burke, D. L., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Castander, F. J., Crocce, M., D'Andrea, C. B., da Costa, L. N., Desai, S., Diehl, H. T., Evrard, A. E., Neto, A. Fausti, Flaugher, B., Fosalba, P., Frieman, J., Gerdes, D. W., Goldstein, D. A., Gruen, D., Gruendl, R. A., Gutierrez, G., Honscheid, K., Jain, B., James, D. J., Jarvis, M., Kuehn, K., Kuropatkin, N., Lahav, O., Lima, M., March, M., Marshall, J. L., Martini, P., Miller, C. J., Miquel, R., Mohr, J. J., Nichol, R. C., Nord, B., Plazas, A. A., Romer, A. K., Roodman, A., Rykoff, E. S., Sanchez, E., Scarpine, V., Schubnell, M., Sevilla-Noarbe, I., Smith, R. C., Soares-Santos, M., Sobreira, F., Swanson, M. E. C., Tarle, G., Thomas, D., Vikram, V., Walker, A. R., & Zhang, Y. Cosmology constraints from shear peak statistics in Dark Energy Survey Science Verification data. United States. https://doi.org/10.1093/mnras/stw2070
Kacprzak, T., Kirk, D., Friedrich, O., Amara, A., Refregier, A., Marian, L., Dietrich, J. P., Suchyta, E., Aleksić, J., Bacon, D., Becker, M. R., Bonnett, C., Bridle, S. L., Chang, C., Eifler, T. F., Hartley, W. G., Huff, E. M., Krause, E., MacCrann, N., Melchior, P., Nicola, A., Samuroff, S., Sheldon, E., Troxel, M. A., Weller, J., Zuntz, J., Abbott, T. M. C., Abdalla, F. B., Armstrong, R., Benoit-Lévy, A., Bernstein, G. M., Bernstein, R. A., Bertin, E., Brooks, D., Burke, D. L., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Castander, F. J., Crocce, M., D'Andrea, C. B., da Costa, L. N., Desai, S., Diehl, H. T., Evrard, A. E., Neto, A. Fausti, Flaugher, B., Fosalba, P., Frieman, J., Gerdes, D. W., Goldstein, D. A., Gruen, D., Gruendl, R. A., Gutierrez, G., Honscheid, K., Jain, B., James, D. J., Jarvis, M., Kuehn, K., Kuropatkin, N., Lahav, O., Lima, M., March, M., Marshall, J. L., Martini, P., Miller, C. J., Miquel, R., Mohr, J. J., Nichol, R. C., Nord, B., Plazas, A. A., Romer, A. K., Roodman, A., Rykoff, E. S., Sanchez, E., Scarpine, V., Schubnell, M., Sevilla-Noarbe, I., Smith, R. C., Soares-Santos, M., Sobreira, F., Swanson, M. E. C., Tarle, G., Thomas, D., Vikram, V., Walker, A. R., and Zhang, Y. 2016. "Cosmology constraints from shear peak statistics in Dark Energy Survey Science Verification data". United States. https://doi.org/10.1093/mnras/stw2070. https://www.osti.gov/servlets/purl/1351749.
@article{osti_1351749,
title = {Cosmology constraints from shear peak statistics in Dark Energy Survey Science Verification data},
author = {Kacprzak, T. and Kirk, D. and Friedrich, O. and Amara, A. and Refregier, A. and Marian, L. and Dietrich, J. P. and Suchyta, E. and Aleksić, J. and Bacon, D. and Becker, M. R. and Bonnett, C. and Bridle, S. L. and Chang, C. and Eifler, T. F. and Hartley, W. G. and Huff, E. M. and Krause, E. and MacCrann, N. and Melchior, P. and Nicola, A. and Samuroff, S. and Sheldon, E. and Troxel, M. A. and Weller, J. and Zuntz, J. and Abbott, T. M. C. and Abdalla, F. B. and Armstrong, R. and Benoit-Lévy, A. and Bernstein, G. M. and Bernstein, R. A. and Bertin, E. and Brooks, D. and Burke, D. L. and Rosell, A. Carnero and Kind, M. Carrasco and Carretero, J. and Castander, F. J. and Crocce, M. and D'Andrea, C. B. and da Costa, L. N. and Desai, S. and Diehl, H. T. and Evrard, A. E. and Neto, A. Fausti and Flaugher, B. and Fosalba, P. and Frieman, J. and Gerdes, D. W. and Goldstein, D. A. and Gruen, D. and Gruendl, R. A. and Gutierrez, G. and Honscheid, K. and Jain, B. and James, D. J. and Jarvis, M. and Kuehn, K. and Kuropatkin, N. and Lahav, O. and Lima, M. and March, M. and Marshall, J. L. and Martini, P. and Miller, C. J. and Miquel, R. and Mohr, J. J. and Nichol, R. C. and Nord, B. and Plazas, A. A. and Romer, A. K. and Roodman, A. and Rykoff, E. S. and Sanchez, E. and Scarpine, V. and Schubnell, M. and Sevilla-Noarbe, I. and Smith, R. C. and Soares-Santos, M. and Sobreira, F. and Swanson, M. E. C. and Tarle, G. and Thomas, D. and Vikram, V. and Walker, A. R. and Zhang, Y.},
abstractNote = {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 analysis of the Dark Energy Survey (DES) Science Verification (SV) data, using weak gravitational lensing measurements from a 139 deg2 field. We measure the abundance of peaks identified in aperture mass maps, as a function of their signal-to-noise ratio, in the signal-to-noise range 0 < S/N < 4 . To predict the peak counts as a function of cosmological parameters, we use a suite of N-body simulations spanning 158 models with varying Ωm and σ8, fixing w = –1, Ωb = 0.04, h = 0.7 and ns = 1, to which we have applied the DES SV mask and redshift distribution. In our fiducial analysis we measure σ8(Ωm/0.3)0.6 = 0.77 ± 0.07, after marginalizing over the shear multiplicative bias and the error on the mean redshift of the galaxy sample. We introduce models of intrinsic alignments, blending and source contamination by cluster members. These models indicate that peaks with S/N > 4 would require significant corrections, which is why we do not include them in our analysis. We compare our results to the cosmological constraints from the two-point analysis on the SV field and find them to be in good agreement in both the central value and its uncertainty. Lastly, we discuss prospects for future peak statistics analysis with upcoming DES data.},
doi = {10.1093/mnras/stw2070},
url = {https://www.osti.gov/biblio/1351749}, journal = {Monthly Notices of the Royal Astronomical Society},
issn = {0035-8711},
number = 4,
volume = 463,
place = {United States},
year = {Fri Aug 19 00:00:00 EDT 2016},
month = {Fri Aug 19 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 101 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Shear-Selected Clusters from the deep lens Survey. iii. Masses from weak Lensing
journal, August 2009


Cosmological Parameters from Observations of Galaxy Clusters
journal, September 2011


Weighing the Giants – III. Methods and measurements of accurate galaxy cluster weak-lensing masses
journal, February 2014


Cosmic shear measurements with Dark Energy Survey Science Verification data
journal, July 2016


Combined analysis of weak lensing and X-ray blind surveys
journal, April 2008


Optimal Capture of Non-Gaussianity in Weak-Lensing Surveys: Power Spectrum, Bispectrum, and halo Counts
journal, March 2010


Shape measurement biases from underfitting and ellipticity gradients: Shape measurement biases
journal, June 2010


SExtractor: Software for source extraction
journal, June 1996


Fermat's principle, caustics, and the classification of gravitational lens images
journal, November 1986


Separating intrinsic alignment and galaxy-galaxy lensing
journal, May 2012


Intrinsic and extrinsic galaxy alignment
journal, January 2001


Wide-Field Lensing Mass Maps from Dark Energy Survey Science Verification Data
journal, July 2015


Intrinsic alignments of group and cluster galaxies in photometric surveys
journal, September 2014


Contamination of early-type galaxy alignments to galaxy lensing–CMB lensing cross-correlation
journal, August 2015


Effects of asphericity and substructure on the determination of cluster mass with weak gravitational lensing
journal, May 2004


The Cluster Mass Function from Weak Gravitational Lensing
journal, December 2006


The Blanco Cosmology Survey: data Acquisition, Processing, Calibration, Quality Diagnostics, and data Release
journal, September 2012


Cosmology with the shear-peak statistics
journal, February 2010


BLOX: the Bonn lensing, optical, and X-ray selected galaxy clusters: I. Cluster catalog construction
journal, May 2007


Dependence of cosmic shear covariances on cosmology: Impact on parameter estimation
journal, June 2009


Baryonic Features in the Matter Transfer Function
journal, April 1998


The dark Energy Camera
journal, October 2015


SkyNet: an efficient and robust neural network training tool for machine learning in astronomy
journal, May 2014


Searching for massive clusters in weak lensing surveys
journal, May 2004


Cosmological constraints from Subaru weak lensing cluster counts
journal, June 2015


Why your model parameter confidences might be too optimistic. Unbiased estimation of the inverse covariance matrix
journal, December 2006


Intrinsic correlation of galaxy shapes: implications for weak lensing measurements
journal, December 2000


Shear‐selected Cluster Cosmology: Tomography and Optimal Filtering
journal, May 2005


Searching for galaxy clusters using the aperture mass statistics in 50 VLT fields
journal, September 2005


GaBoDS: The Garching-Bonn deep survey: VII. Cosmic shear analysis
journal, April 2007


CFHTLenS: the Canada–France–Hawaii Telescope Lensing Survey: CFHTLenS
journal, October 2012


CFHTLenS tomographic weak lensing cosmological parameter constraints: Mitigating the impact of intrinsic galaxy alignments
journal, May 2013


Measuring primordial non-Gaussianity with weak lensing surveys: Primordial non-Gaussianity and weak lensing
journal, October 2012


Intrinsic alignment-lensing interference as a contaminant of cosmic shear
journal, September 2004


First Cosmic Shear Results from the Canada‐France‐Hawaii Telescope Wide Synoptic Legacy Survey
journal, August 2006


Sample Variance Considerations for Cluster Surveys
journal, February 2003


Weak-Lensing Results from the 75 Square Degree Cerro Tololo Inter-American Observatory Survey
journal, March 2003


The DES Science Verification weak lensing shear catalogues
journal, May 2016


Measurement and calibration of noise bias in weak lensing galaxy shape estimation
journal, December 2012


Sersic galaxy models in weak lensing shape measurement: model bias, noise bias and their interaction
journal, May 2014


Mapping the dark matter with weak gravitational lensing
journal, February 1993


Cosmology with cosmic shear observations: a review
journal, July 2015


CFHTLenS: combined probe cosmological model comparison using 2D weak gravitational lensing
journal, February 2013


The cosmological impact of intrinsic alignment model choice for cosmic shear
journal, August 2012


Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing
journal, March 2016


Probing cosmology with weak lensing peak counts
journal, February 2010


Probing cosmology with weak lensing Minkowski functionals
journal, May 2012


Brightest Satellite Galaxy Alignment of Sloan Digital sky Survey Galaxy Groups
journal, April 2013


Estimating the redshift distribution of photometric galaxy samples
journal, October 2008


A new model to predict weak-lensing peak counts: II. Parameter constraint strategies
journal, October 2015


Cosmology constraints from the weak lensing peak counts and the power spectrum in CFHTLenS data
journal, March 2015


Cosmological constraints from weak lensing peak statistics with Canada-France-Hawaii Telescope Stripe 82 Survey
journal, May 2015


The Third Gravitational Lensing Accuracy Testing (Great3) Challenge Handbook
journal, April 2014


GREAT3 results – I. Systematic errors in shear estimation and the impact of real galaxy morphology
journal, May 2015


Measuring Primordial Non-Gaussianity Through Weak-Lensing peak Counts
journal, January 2011


Optimized detection of shear peaks in weak lensing maps: Optimized detection of shear peaks in WL maps
journal, May 2012


The cosmological information of shear peaks: beyond the abundance
journal, April 2013


An optimal filter for the detection of galaxy clusters through weak lensing
journal, October 2005


Searching dark-matter halos in the GaBoDS survey
journal, November 2006


An analytic approach to number counts of weak-lensing peak detections
journal, September 2010


Imprints of primordial non-Gaussianity on the number counts of cosmic shear peaks: Shear peak counts
journal, August 2011


Bayesian galaxy shape measurement for weak lensing surveys – III. Application to the Canada–France–Hawaii Telescope Lensing Survey
journal, January 2013


Gravitational lensing by clusters of galaxies - Constraining the mass distribution
journal, March 1991


Subaru Prime Focus Camera — Suprime-Cam
journal, December 2002


A Universal Density Profile from Hierarchical Clustering
journal, December 1997


Impact of Baryonic Processes on Weak-Lensing Cosmology: Power Spectrum, Nonlocal Statistics, and Parameter bias
journal, June 2015


Optimal point spread function modeling for weak lensing: complexity and sparsity
journal, April 2009


Impact of spurious shear on cosmological parameter estimates from weak lensing observables
journal, December 2014


Cosmological constraints from the capture of non-Gaussianity in weak lensing data: Cosmological constraints in weak lensing data
journal, April 2012


Noise bias in weak lensing shape measurements: Noise bias in lensing shape measurement
journal, August 2012


Extreme value statistics of weak lensing shear peak counts
journal, December 2015


COSMOLOGICAL CONSTRAINTS FROM THE SLOAN DIGITAL SKY SURVEY MaxBCG CLUSTER CATALOG
journal, December 2009


Photometric redshift analysis in the Dark Energy Survey Science Verification data
journal, October 2014


GaBoDS: the Garching-Bonn Deep Survey: IX. A sample of 158 shear-selected mass concentration candidates
journal, November 2006


Detection of (dark) matter concentrations via weak gravitational lensing
journal, December 1996


A halo model for intrinsic alignments of galaxy ellipticities
journal, March 2010


Evidence of the accelerated expansion of the Universe from weak lensing tomography with COSMOS
journal, June 2010


Cosmic shear analysis with CFHTLS deep data
journal, May 2006


An implementation of Bayesian lensing shear measurement
journal, July 2014


Cross-Correlation weak Lensing of sdss Galaxy Clusters. i. Measurements
journal, September 2009


Controlling intrinsic-shear alignment in three-point weak lensing statistics
journal, November 2010


Constraints on the alignment of galaxies in galaxy clusters from ~14 000 spectroscopic members
journal, February 2015


Intrinsic alignments of SDSS-III BOSS LOWZ sample galaxies
journal, May 2015


The cosmological simulation code gadget-2
journal, December 2005


No galaxy left behind: accurate measurements with the faintest objects in the Dark Energy Survey
journal, January 2016


Effects of the Complex Mass Distribution of Dark Matter Halos on Weak‐Lensing Cluster Surveys
journal, December 2005


Estimating cosmological parameter covariance
journal, June 2014


Putting the precision in precision cosmology: How accurate should your data covariance matrix be?
journal, May 2013


Intrinsic alignments of disc and elliptical galaxies in the MassiveBlack-II and Illustris simulations
journal, July 2016


Cosmology from cosmic shear with Dark Energy Survey Science Verification data
journal, July 2016


Self-calibration technique for three-point intrinsic alignment correlations in weak lensing surveys: GGI self-calibration
journal, December 2011


Self-calibration for three-point intrinsic alignment autocorrelations in weak lensing surveys: Three-point IA self-calibration
journal, May 2012


Detection of systematic gravitational lens galaxy image alignments - Mapping dark matter in galaxy clusters
journal, January 1990


Limitations of model-fitting methods for lensing shear estimation
journal, March 2010


Constraining the evolution of dark energy with a combination of galaxy cluster observables
journal, December 2004


Cosmological information in weak lensing peaks
journal, August 2011


Baryon impact on weak lensing peaks and power spectrum: Low-bias statistics and self-calibration in future surveys
journal, January 2013


Weak lensing mass map and peak statistics in Canada–France–Hawaii Telescope Stripe 82 survey
journal, June 2014


im3shape: a maximum likelihood galaxy shear measurement code for cosmic gravitational lensing
journal, July 2013


Intrinsic correlation of galaxy shapes: implications for weak lensing measurements
journal, December 2000


GaBoDS: the Garching-Bonn deep survey: VIII. Lyman-break galaxies in the ESO deep public survey
journal, November 2006


Intrinsic alignments of SDSS-III BOSS LOWZ sample galaxies
text, January 2015


The cosmology dependence of weak lensing cluster counts
text, January 2009


The impact of correlated projections on weak lensing cluster counts
text, January 2010


Intrinsic alignments of group and cluster galaxies in photometric surveys
text, January 2018


Intrinsic alignments of SDSS-III BOSS LOWZ sample galaxies
text, January 2015


Optimized detection of shear peaks in weak lensing maps
text, January 2012


Intrinsic alignments of disk and elliptical galaxies in the MassiveBlack-II and Illustris simulations
text, January 2015


Separating intrinsic alignment and galaxy-galaxy lensing
text, January 2012


A new model to predict weak-lensing peak counts: I. Comparison with
journal, March 2015


Measuring primordial non-Gaussianity with weak lensing surveys
interactiveresource, January 2012


Cross-correlation Weak Lensing of SDSS Galaxy Clusters I: Measurements
text, January 2007


Cosmology with the shear-peak statistics
text, January 2009


Probing Cosmology with Weak Lensing Peak Counts
text, January 2009


Extreme value statistics of weak lensing shear peak counts
text, January 2015


Searching for massive clusters in weak lensing surveys
text, January 2003


Cosmic Shear Analysis with CFHTLS Deep data
text, January 2005


Works referencing / citing this record:

An improved cosmological parameter inference scheme motivated by deep learning
journal, October 2018


Breaking degeneracies in modified gravity with higher (than 2nd) order weak-lensing statistics
journal, November 2018


Euclid preparation : IV. Impact of undetected galaxies on weak-lensing shear measurements⋆
journal, July 2019


Cosmic shear covariance matrix in w CDM: Cosmology matters
journal, November 2019


Dark energy two decades after: observables, probes, consistency tests
journal, December 2017


MassiveNuS: cosmological massive neutrino simulations
journal, March 2018


Constraining neutrino mass with the tomographic weak lensing bispectrum
journal, May 2019


A nulling strategy for modelling lensing convergence in cones with large deviation theory
journal, January 2020


The imprint of f(R) gravity on weak gravitational lensing – II. Information content in cosmic shear statistics
journal, December 2016


KiDS-450: cosmological constraints from weak-lensing peak statistics – II: Inference from shear peaks using N-body simulations
journal, October 2017


KiDS-450: cosmological constraints from weak lensing peak statistics – I. Inference from analytical prediction of high signal-to-noise ratio convergence peaks
journal, November 2017


Dark Energy Survey Year 1 results: the impact of galaxy neighbours on weak lensing cosmology with im3shape
journal, December 2017


Studying galaxy troughs and ridges using weak gravitational lensing with the Kilo-Degree Survey
journal, September 2018


Deep lensing with a twist: E and B modes in a field with multiple lenses
journal, October 2018


Cylinders out of a top hat: counts-in-cells for projected densities
journal, March 2018


Distinguishing standard and modified gravity cosmologies with machine learning
journal, July 2019


Fast cosmic web simulations with generative adversarial networks
journal, November 2018


Cosmological N-body simulations: a challenge for scalable generative models
journal, December 2019


Projection Effects of Large-scale Structures on Weak-lensing Peak Abundances
journal, April 2018


Quantifying systematics from the shear inversion on weak-lensing peak counts
journal, June 2018


Weak lensing peak statistics in the era of large scale cosmological surveys
journal, October 2018


Improving weak lensing mass map reconstructions using Gaussian and sparsity priors: application to DES SV
journal, May 2018


KiDS-450: enhancing cosmic shear with clipping transformations
journal, August 2018


Cosmological simulations for combined-probe analyses: covariance and neighbour-exclusion bias
journal, August 2018


The impact of baryonic physics and massive neutrinos on weak lensing peak statistics
journal, July 2019


Weak lensing cosmology with convolutional neural networks on noisy data
journal, September 2019


A black box for dark sector physics: predicting dark matter annihilation feedback with conditional GANs
journal, October 2019


Parameter inference and model comparison using theoretical predictions from noisy simulations
journal, October 2019


Hierarchical Modeling and Statistical Calibration for Photometric Redshifts
journal, August 2019


Cosmological N-body simulations: a challenge for scalable generative models
text, January 2019


Cylinders out of a top hat: Counts-in-cells for projected densities
text, January 2018


Fast cosmic web simulations with generative adversarial networks
text, January 2018


KiDS-450: Enhancing cosmic shear with clipping transformations
text, January 2018


Cosmological constraints from noisy convergence maps through deep learning
text, January 2018


Weak lensing cosmology with convolutional neural networks on noisy data
text, January 2019