1.2k citations · 12.1k across the 175 of their papers we have counts for
18 papers · 1 filter
Dark Energy Survey Year 1 results: Validation of weak lensing cluster member contamination estimates from P(z) decomposition
T. N. Varga, J. DeRose, D. Gruen +68
Weak lensing source galaxy catalogs used in estimating the masses of galaxy clusters can be heavily contaminated by cluster members, prohibiting accurate mass calibration. In this…
Measurement of the Splashback Feature around SZ-selected Galaxy Clusters with DES, SPT and ACT
T. Shin, S. Adhikari, E. J. Baxter +107
We present a detection of the splashback feature around galaxy clusters selected using their Sunyaev-Zel'dovich (SZ) signal. Recent measurements of the splashback feature around op…
Cosmological Constraints from Multiple Probes in the Dark Energy Survey
DES Collaboration, T. M. C. Abbott, A. Alarcon +166
The combination of multiple observational probes has long been advocated as a powerful technique to constrain cosmological parameters, in particular dark energy. The Dark Energy Su…
UNIT project: Universe -body simulations for the Investigation of Theoretical models from galaxy surveys
Chia-Hsun Chuang, Gustavo Yepes, Francisco-Shu Kitaura +13
We present the UNIT -body cosmological simulations project, designed to provide precise predictions for nonlinear statistics of the galaxy distribution. We focus on characterizi…
Dark Energy Survey Year 1 Results: Methods for Cluster Cosmology and Application to the SDSS
M. Costanzi, E. Rozo, M. Simet +83
We perform the first blind analysis of cluster abundance data. Specifically, we derive cosmological constraints from the abundance and weak-lensing signal of \redmapper\ clusters o…
Dark Energy Survey Year 1 Results: Cross-correlation between DES Y1 galaxy weak lensing and SPT+Planck CMB weak lensing
Y. Omori, E. Baxter, C. Chang +137
We cross-correlate galaxy weak lensing measurements from the Dark Energy Survey (DES) year-one (Y1) data with a cosmic microwave background (CMB) weak lensing map derived from Sout…
Dark Energy Survey Year 1 Results: Joint Analysis of Galaxy Clustering, Galaxy Lensing, and CMB Lensing Two-point Functions
T. M. C. Abbott, F. B. Abdalla, A. Alarcon +164
We perform a joint analysis of the auto and cross-correlations between three cosmic fields: the galaxy density field, the galaxy weak lensing shear field, and the cosmic microwave…
Dark Energy Survey Year 1 Results: Constraints on Extended Cosmological Models from Galaxy Clustering and Weak Lensing
DES Collaboration, T. M. C. Abbott, F. B. Abdalla +112
We present constraints on extensions of the minimal cosmological models dominated by dark matter and dark energy, CDM and CDM, by using a combined analysis of galaxy clusteri…
Modeling projection effects in optically-selected cluster catalogues
M. Costanzi, E. Rozo, E. S. Rykoff +13
The cosmological utility of galaxy cluster catalogues is primarily limited by our ability to calibrate the relation between halo mass and observable mass proxies such as cluster ri…
Hierarchical modeling and statistical calibration for photometric redshifts
Boris Leistedt, David W. Hogg, Risa H. Wechsler +1
The cosmological exploitation of modern photometric galaxy surveys requires both accurate (unbiased) and precise (narrow) redshift probability distributions derived from broadband…
Approximating photo- PDFs for large surveys
A. I. Malz, P. J. Marshall, S. J. Schmidt +3
Modern galaxy surveys produce redshift probability density functions (PDFs) in addition to traditional photometric redshift (photo-) point estimates. However, the storage of pho…
Dark Energy Survey Year 1 Results: Weak Lensing Mass Calibration of redMaPPer Galaxy Clusters
T. McClintock, T. N. Varga, D. Gruen +99
We constrain the mass--richness scaling relation of redMaPPer galaxy clusters identified in the Dark Energy Survey Year 1 data using weak gravitational lensing. We split clusters i…
The Aemulus Project III: Emulation of the Galaxy Correlation Function
Zhongxu Zhai, Jeremy L. Tinker, Matthew R. Becker +6
Using the N-body simulations of the AEMULUS Project, we construct an emulator for the non-linear clustering of galaxies in real and redshift space. We construct our model of galaxy…
The Aemulus Project II: Emulating the Halo Mass Function
Thomas McClintock, Eduardo Rozo, Matthew R. Becker +6
Existing models for the dependence of the halo mass function on cosmological parameters will become a limiting source of systematic uncertainty for cluster cosmology in the near fu…
The Aemulus Project I: Numerical Simulations for Precision Cosmology
Joseph DeRose, Risa H. Wechsler, Jeremy L. Tinker +6
The rapidly growing statistical precision of galaxy surveys has lead to a need for ever-more precise predictions of the observables used to constrain cosmological and galaxy format…
Survey geometry and the internal consistency of recent cosmic shear measurements
M. A. Troxel, E. Krause, C. Chang +76
We explore the impact of an update to the typical approximation for the shape noise term in the analytic covariance matrix for cosmic shear experiments that assumes the absence of…
Effects of NII and H Line Blending on the WFIRST Galaxy Redshift Survey
Daniel Martens, Xiao Fang, M. A. Troxel +4
The Wide Field Infrared Survey Telescope (WFIRST) will conduct a galaxy redshift survey using the H emission line primarily for spectroscopic redshift determination. Due to the…
DES Y1 Results: Validating cosmological parameter estimation using simulated Dark Energy Surveys
N. MacCrann, J. DeRose, R. H. Wechsler +76
We use mock galaxy survey simulations designed to resemble the Dark Energy Survey Year 1 (DES Y1) data to validate and inform cosmological parameter estimation. When similar analys…