Search Results - "Becker, Matthew R."
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Cosmic discordance: are Planck CMB and CFHTLenS weak lensing measurements out of tune?
Published in Monthly notices of the Royal Astronomical Society (11-08-2015)“…We examine the level of agreement between low-redshift weak lensing data and the cosmic microwave background using measurements from the Canada–France–Hawaii…”
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On the Accuracy of Weak-lensing Cluster Mass Reconstructions
Published in The Astrophysical journal (10-10-2011)“…We study the bias and scatter in mass measurements of galaxy clusters resulting from fitting a spherically symmetric Navarro, Frenk, & White model to the…”
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The Aemulus Project. I. Numerical Simulations for Precision Cosmology
Published in The Astrophysical journal (10-04-2019)“…The rapidly growing statistical precision of galaxy surveys has led to a need for ever more precise predictions of the observables used to constrain…”
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The Aemulus Project. II. Emulating the Halo Mass Function
Published in The Astrophysical journal (10-02-2019)“…Existing models for the dependence of the halo mass function on cosmological parameters will become a limiting source of systematic uncertainty for cluster…”
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The Aemulus Project. III. Emulation of the Galaxy Correlation Function
Published in The Astrophysical journal (20-03-2019)“…Using the N-body simulations of the Aemulus Project, we construct an emulator for the nonlinear clustering of galaxies in real and redshift space. We construct…”
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A redefinition of the halo boundary leads to a simple yet accurate halo model of large-scale structure
Published in Monthly notices of the Royal Astronomical Society (01-07-2021)“…ABSTRACT We present a model for the halo–mass correlation function that explicitly incorporates halo exclusion and allows for a redefinition of the halo…”
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A Cohesive Deep Drilling Field Strategy for LSST Cosmology
Published in The Astrophysical journal. Supplement series (01-12-2024)“…Abstract The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will image billions of astronomical objects in the wide–fast–deep primary survey…”
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Cosmological Constraints from the Sloan Digital Sky Survey maxBCG Cluster Catalog
Published in The Astrophysical journal (01-01-2010)“…We use the abundance and weak-lensing mass measurements of the Sloan Digital Sky Survey maxBCG cluster catalog to simultaneously constrain cosmology and the…”
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Cosmological Constraints from Galaxy Clustering and the Mass-to-number Ratio of Galaxy Clusters
Published in The Astrophysical journal (20-01-2012)“…We place constraints on the average density ([Omega]m) and clustering amplitude of matter using a combination of two measurements from the Sloan Digital Sky…”
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Cosmological constraints from the large-scale weak lensing of SDSS MaxBCG clusters
Published in Monthly notices of the Royal Astronomical Society (01-04-2014)“…We derive constraints on the matter density Ωm and the amplitude of matter clustering σ8 from measurements of large-scale weak lensing (projected separation R…”
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Mitigating Shear-dependent Object Detection Biases with Metacalibration
Published in The Astrophysical journal (01-10-2020)“…Abstract M etacalibration is a new technique for measuring weak gravitational lensing shear that is unbiased for isolated galaxy images. In this work we test…”
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THE CONCENTRATION DEPENDENCE OF THE GALAXY-HALO CONNECTION: MODELING ASSEMBLY BIAS WITH ABUNDANCE MATCHING
Published in The Astrophysical journal (01-01-2017)“…ABSTRACT Empirical methods for connecting galaxies to their dark matter halos have become essential for interpreting measurements of the spatial statistics of…”
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Modeling Redshift-space Clustering with Abundance Matching
Published in The Astrophysical journal (01-11-2022)“…Abstract We explore the degrees of freedom required to jointly fit projected and redshift-space clustering of galaxies selected in three bins of stellar mass…”
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ADDGALS: Simulated Sky Catalogs for Wide Field Galaxy Surveys
Published in The Astrophysical journal (01-06-2022)“…Abstract We present a method for creating simulated galaxy catalogs with realistic galaxy luminosities, broadband colors, and projected clustering over large…”
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Fourier band-power E/B-mode estimators for cosmic shear
Published in Monthly notices of the Royal Astronomical Society (21-03-2016)“…We introduce new Fourier band-power estimators for cosmic shear data analysis and E/B-mode separation. We consider both the case where one performs E/B-mode…”
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Diffstar: a fully parametric physical model for galaxy assembly history
Published in Monthly notices of the Royal Astronomical Society (01-01-2023)“…ABSTRACT We present Diffstar , a smooth parametric model for the in situ star formation history (SFH) of galaxies. The Diffstar model is distinct from…”
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Cosmic shear as a probe of galaxy formation physics
Published in Monthly notices of the Royal Astronomical Society (11-12-2016)“…We evaluate the potential for current and future cosmic shear measurements from large galaxy surveys to constrain the impact of baryonic physics on the matter…”
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The dark side of galaxy colour: evidence from new SDSS measurements of galaxy clustering and lensing
Published in Monthly notices of the Royal Astronomical Society (11-10-2014)“…The age-matching model has recently been shown to predict correctly the luminosity L and g − r colour of galaxies residing within dark matter haloes. The…”
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DSPS: Differentiable stellar population synthesis
Published in Monthly notices of the Royal Astronomical Society (01-05-2023)“…ABSTRACT Models of stellar population synthesis (SPS) are the fundamental tool that relates the physical properties of a galaxy to its spectral energy…”
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Cosmic shear E/B-mode estimation with binned correlation function data
Published in Monthly notices of the Royal Astronomical Society (21-10-2013)“…In this work, I study the problem of E/B-mode separation with binned cosmic shear two-point correlation function data. Motivated by previous work on E/B-mode…”
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