88 citations · 455 across the 26 of their papers we have counts for
22 papers · 1 filter
Unifying cluster and galaxy cosmology analyses using the galaxy-halo connection
Shulei Cao, Hao-Yi Wu, Andrés N. Salcedo +3
Galaxies and galaxy clusters trace the same cosmic density field, but their statistics have been modeled separately in cosmological analyses. We present a unified, simulation-based…
What Galaxy Clusters Have to Say About Dynamical Dark Energy and
Andrés N. Salcedo, Eduardo Rozo, Hao-Yi Wu +4
We show that, in flat CDM, low-redshift structure probes -- cluster abundances, 32-point analyses, and full-shape clustering -- are mutually consistent, jointly deliveri…
Cosmological Constraints from Dark Energy Survey Year 1 Cluster Lensing and Abundances with Simulation-based Forward-Modeling
Andrés N. Salcedo, Eduardo Rozo, Hao-Yi Wu +7
We present a simulation-based forward-modeling framework for cosmological inference from optical galaxy-cluster samples, and apply it to the abundance and weak-lensing signals of D…
Association between optically identified galaxy clusters and the underlying dark matter halos
DES Collaboration, Shulei Cao, Hao-Yi Wu +10
Clusters of galaxies trace massive dark matter halos in the Universe, but they can include multiple halos projected along lines of sight. As a case study, we quantify the propertie…
Multiprobe cosmology forecasts from halo-occupation-distribution-based forward modeling of galaxy and void statistics
Andrés N. Salcedo, Alice Pisani, Nico Hamaus
The large under-dense regions in the cosmological matter density field, known as cosmic voids, are powerful probes of cosmology but their potential is currently under-exploited. Ob…
Optical galaxy cluster mock catalogs with realistic projection effects: Validations with the SDSS clusters
Andy Lee, Hao-Yi Wu, Andrés N. Salcedo +9
Galaxy clusters identified in optical imaging surveys suffer from projection effects: Physically unassociated galaxies along a cluster's line of sight can be counted as its members…
One Galaxy Sample to Rule Them All: Halo Occupation Distribution Modeling of DES Year 3 Source Galaxies
Andrés N. Salcedo, Tim Eifler, Peter Behroozi
For the joint analysis of second-order weak lensing and galaxy clustering statistics, so-called analyses, the selection and characterization of optimal galaxy samples…
A Parameter-Masked Mock Data Challenge for Beyond-Two-Point Galaxy Clustering Statistics
2pt Collaboration, Elisabeth Krause, Yosuke Kobayashi +23
The last few years have seen the emergence of a wide array of novel techniques for analyzing high-precision data from upcoming galaxy surveys, which aim to extend the statistical a…
Forecasting the constraints on optical selection bias and projection effects of galaxy cluster lensing with multiwavelength data
Conghao Zhou, Hao-Yi Wu, Andrés N. Salcedo +12
Galaxy clusters identified with optical imaging tend to suffer from projection effects, which impact richness (the number of member galaxies in a cluster) and lensing coherently. P…
Dark Energy Survey Year 1 Clusters are Consistent with Planck
Andrés N. Salcedo, Hao-Yi Wu, Eduardo Rozo +4
The recent Dark Energy Survey Year 1 (DES-Y1) analysis of galaxy cluster abundances and weak lensing produced and constraints in 5.6 tension with Planck. It is…
Self-calibrating optical galaxy cluster selection bias using cluster, galaxy, and shear cross-correlations
Chenxiao Zeng, Andrés N. Salcedo, Hao-Yi Wu +1
The clustering signals of galaxy clusters are known to be powerful tools for self-calibrating the mass-observable relation and are complementary to cluster abundance and lensing. I…
LINNA: Likelihood Inference Neural Network Accelerator
Chun-Hao To, Eduardo Rozo, Elisabeth Krause +3
Bayesian posterior inference of modern multi-probe cosmological analyses incurs massive computational costs. For instance, depending on the combinations of probes, a single posteri…
Optical selection bias and projection effects in stacked galaxy cluster weak lensing
Hao-Yi Wu, Matteo Costanzi, Chun-Hao To +16
Cosmological constraints from current and upcoming galaxy cluster surveys are limited by the accuracy of cluster mass calibration. In particular, optically identified galaxy cluste…
Exploiting Non-linear Scales in Galaxy-Galaxy Lensing and Galaxy Clustering: A Forecast for the Dark Energy Survey
Andrés N. Salcedo, David H. Weinberg, Hao-Yi Wu +1
The combination of galaxy-galaxy lensing (GGL) and galaxy clustering is a powerful probe of low redshift matter clustering, especially if it is extended to the non-linear regime. T…
The mass and galaxy distribution around SZ-selected clusters
T. Shin, B. Jain, S. Adhikari +136
We present measurements of the radial profiles of the mass and galaxy number density around Sunyaev-Zel'dovich-selected clusters using both weak lensing and galaxy counts. The clus…
Cosmology with galaxy cluster weak lensing: statistical limits and experimental design
Hao-Yi Wu, David H. Weinberg, Andrés N. Salcedo +1
We forecast constraints on the amplitude of matter clustering sigma_8(z) achievable with the combination of cluster weak lensing and number counts, in current and next-generation w…
Elucidating Galaxy Assembly Bias in SDSS
Andrés N. Salcedo, Ying Zu, Youcai Zhang +6
We investigate the level of galaxy assembly bias in the Sloan Digital Sky Survey (SDSS) main galaxy sample using ELUCID, a state-of-the-art constrained simulation that accurately r…
Covariance matrices for galaxy cluster weak lensing: from virial regime to uncorrelated large-scale structure
Hao-Yi Wu, David H. Weinberg, Andrés N. Salcedo +2
Next-generation optical imaging surveys will revolutionise the observations of weak gravitational lensing by galaxy clusters and provide stringent constraints on growth of structur…
Cosmology with galaxy-galaxy lensing on non-perturbative scales: Emulation method and application to BOSS LOWZ
Benjamin D. Wibking, David H. Weinberg, Andrés N. Salcedo +5
We describe our nonlinear emulation (i.e., interpolation) framework that combines the halo occupation distribution (HOD) galaxy bias model with -body simulations of nonlinear st…
Cosmology with Stacked Cluster Weak Lensing and Cluster-Galaxy Cross-Correlations
Andrés N. Salcedo, Benjamin D. Wibking, David H. Weinberg +4
Cluster weak lensing is a sensitive probe of cosmology, particularly the amplitude of matter clustering and matter density parameter . The main nuisance parameter in a c…
Emulating galaxy clustering and galaxy-galaxy lensing into the deeply nonlinear regime: methodology, information, and forecasts
Benjamin D. Wibking, Andrés N. Salcedo, David H. Weinberg +6
The combination of galaxy-galaxy lensing (GGL) with galaxy clustering is one of the most promising routes to determining the amplitude of matter clustering at low redshifts. We sho…
Spatial Clustering of Dark Matter Halos: Secondary Bias, Neighbor Bias, and the Influence of Massive Neighbors on Halo Properties
Andrés N. Salcedo, Ariyeh H. Maller, Andreas A. Berlind +5
We explore the phenomenon commonly known as halo assembly bias, whereby dark matter halos of the same mass are found to be more or less clustered when a second halo property is con…