Joseph DeRose
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View article: Dark Energy Survey Year 3 results: <i>w</i> CDM cosmology from simulation-based inference with persistent homology on the sphere
Dark Energy Survey Year 3 results: <i>w</i> CDM cosmology from simulation-based inference with persistent homology on the sphere Open
We present cosmological constraints from Dark Energy Survey Year 3 (DES Y3) weak lensing data using persistent homology, a topological data analysis technique that tracks how features like clusters and voids evolve across density threshold…
View article: DESI DR2 reference mocks: clustering results from Uchuu-BGS and LRG
DESI DR2 reference mocks: clustering results from Uchuu-BGS and LRG Open
The aim of this work is to construct mock galaxy catalogues that accurately reproduce the redshift evolution of galaxy number density, clustering statistics, and baryonic properties, such as stellar mass for luminous red galaxies (LRGs) an…
View article: Lensing Without Borders: Measurements of galaxy-galaxy lensing and projected galaxy clustering in DESI DR1
Lensing Without Borders: Measurements of galaxy-galaxy lensing and projected galaxy clustering in DESI DR1 Open
We present Galaxy-Galaxy Lensing measurements obtained by cross-correlating spectroscopically observed galaxies from the first data release of the Dark Energy Spectroscopic Instrument (DESI) with source galaxies from the Hyper Suprime-Cam …
View article: Constraints on cosmology and baryonic feedback with joint analysis of Dark Energy Survey Year 3 lensing data and ACT DR6 thermal Sunyaev-Zel'dovich effect observations
Constraints on cosmology and baryonic feedback with joint analysis of Dark Energy Survey Year 3 lensing data and ACT DR6 thermal Sunyaev-Zel'dovich effect observations Open
We present a joint analysis of weak gravitational lensing (shear) data obtained from the first three years of observations by the Dark Energy Survey and thermal Sunyaev-Zel'dovich (tSZ) effect measurements from a combination of Atacama Cos…
View article: Cosmological constraints from the cross-correlation of DESI Luminous Red Galaxies with CMB lensing from Planck PR4 and ACT DR6
Cosmological constraints from the cross-correlation of DESI Luminous Red Galaxies with CMB lensing from Planck PR4 and ACT DR6 Open
We infer the growth of large scale structure over the redshift range 0.4 ≲ z ≲ 1 from the cross-correlation of spectroscopically calibrated Luminous Red Galaxies (LRGs) selected from the Dark Energy Spectroscopic Instrument (DESI) legacy i…
View article: High-significance detection of correlation between the unresolved gamma-ray background and the large-scale cosmic structure
High-significance detection of correlation between the unresolved gamma-ray background and the large-scale cosmic structure Open
Our understanding of the γ -ray sky has improved dramatically in the past decade, however, the unresolved γ -ray background (UGRB) still has a potential wealth of information about the faintest γ -ray sources pervading the Universe. Statis…
View article: Cosmological constraints from the cross-correlation of DESI Luminous Red Galaxies with CMB lensing from Planck PR4 and ACT DR6
Cosmological constraints from the cross-correlation of DESI Luminous Red Galaxies with CMB lensing from Planck PR4 and ACT DR6 Open
We infer the growth of large scale structure over the redshift range 0.4 ≲ z ≲ 1 from the cross-correlation of spectroscopically calibrated Luminous Red Galaxies (LRGs) selected from the Dark Energy Spectroscopic Instrument (DESI) legacy i…
View article: The HalfDome multi-survey cosmological simulations: N-body simulations
The HalfDome multi-survey cosmological simulations: N-body simulations Open
Upcoming cosmological surveys have the potential to reach groundbreaking discoveries on multiple fronts, including the neutrino mass, dark energy, and inflation. Most of the key science goals require the joint analysis of datasets from mul…
View article: Multiprobe cosmology from the abundance of SPT clusters and DES galaxy clustering and weak lensing
Multiprobe cosmology from the abundance of SPT clusters and DES galaxy clustering and weak lensing Open
Cosmic shear, galaxy clustering, and the abundance of massive halos each probe the large-scale structure of the Universe in complementary ways. We present cosmological constraints from the joint analysis of the three probes, building on th…
View article: Aemulus <i>ν</i>: precision halo mass functions in w<i>ν</i>CDM cosmologies
Aemulus <i>ν</i>: precision halo mass functions in w<i>ν</i>CDM cosmologies Open
Precise and accurate predictions of the halo mass function for cluster mass scales in wν CDM cosmologies are crucial for extracting robust and unbiased cosmological information from upcoming galaxy cluster surveys. Here, we present a halo …
View article: The Atacama Cosmology Telescope DR6 and DESI: structure formation over cosmic time with a measurement of the cross-correlation of CMB lensing and luminous red galaxies
The Atacama Cosmology Telescope DR6 and DESI: structure formation over cosmic time with a measurement of the cross-correlation of CMB lensing and luminous red galaxies Open
We present a high-significance cross-correlation of CMB lensing maps from the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) with luminous red galaxies (LRGs) from the Dark Energy Spectroscopic Instrument (DESI) Legacy Survey spect…
View article: Dark energy survey year 3 results: cosmology from galaxy clustering and galaxy–galaxy lensing in harmonic space
Dark energy survey year 3 results: cosmology from galaxy clustering and galaxy–galaxy lensing in harmonic space Open
We present the joint tomographic analysis of galaxy-galaxy lensing and galaxy clustering in harmonic space (HS), using galaxy catalogues from the first three years of observations by the Dark Energy Survey (DES Y3). We utilize the redMaGiC…
View article: Dark energy survey year 3 results: likelihood-free, simulation-based <i>w</i>CDM inference with neural compression of weak-lensing map statistics
Dark energy survey year 3 results: likelihood-free, simulation-based <i>w</i>CDM inference with neural compression of weak-lensing map statistics Open
We present simulation-based cosmological wcold dark matter (wCDM) inference using dark energy survey year 3 weak-lensing maps, via neural data compression of weak-lensing map summary statistics: power spectra, peak counts, and direct map-l…
View article: Dark Energy Survey Year 3: Blue Shear
Dark Energy Survey Year 3: Blue Shear Open
Modeling the intrinsic alignment (IA) of galaxies poses a challenge to weak lensing analyses. The Dark Energy Survey is expected to be less impacted by IA when limited to blue, star-forming galaxies. The cosmological parameter constraints …
View article: Aemulus $ν$: Precision halo mass functions in w$ν$CDM cosmologies
Aemulus $ν$: Precision halo mass functions in w$ν$CDM cosmologies Open
Precise and accurate predictions of the halo mass function for cluster mass scales in $wν{\rm CDM}$ cosmologies are crucial for extracting robust and unbiased cosmological information from upcoming galaxy cluster surveys. Here, we present …
View article: Enhancing weak lensing redshift distribution characterization by optimizing the Dark Energy Survey Self-Organizing Map Photo-z method
Enhancing weak lensing redshift distribution characterization by optimizing the Dark Energy Survey Self-Organizing Map Photo-z method Open
Characterization of the redshift distribution of ensembles of galaxies is pivotal for large scale structure cosmological studies. In this work, we focus on improving the Self-Organizing Map (SOM) methodology for photometric redshift estima…
View article: Redshift evolution and covariances for joint lensing and clustering studies with DESI Y1
Redshift evolution and covariances for joint lensing and clustering studies with DESI Y1 Open
Galaxy–galaxy lensing (GGL) and clustering measurements from the Dark Energy Spectroscopic Instrument Year 1 (DESI Y1) data set promise to yield unprecedented combined-probe tests of cosmology and the galaxy–halo connection. In such analys…
View article: DESI complete calibration of the colour–redshift relation (DC3R2): results from early DESI data
DESI complete calibration of the colour–redshift relation (DC3R2): results from early DESI data Open
We present initial results from the Dark Energy Spectroscopic Instrument (DESI) complete calibration of the colour–redshift relation (DC3R2) secondary target survey. Our analysis uses 230 k galaxies that overlap with KiDS-VIKING ugriZYJHKs…
View article: The Aemulus Project. VI. Emulation of Beyond-standard Galaxy Clustering Statistics to Improve Cosmological Constraints
The Aemulus Project. VI. Emulation of Beyond-standard Galaxy Clustering Statistics to Improve Cosmological Constraints Open
There is untapped cosmological information in galaxy redshift surveys in the nonlinear regime. In this work, we use the Aemulus suite of cosmological N -body simulations to construct Gaussian process emulators of galaxy clustering statisti…
View article: Validation of the Scientific Program for the Dark Energy Spectroscopic Instrument
Validation of the Scientific Program for the Dark Energy Spectroscopic Instrument Open
The Dark Energy Spectroscopic Instrument (DESI) was designed to conduct a survey covering 14,000 deg 2 over 5 yr to constrain the cosmic expansion history through precise measurements of baryon acoustic oscillations (BAO). The scientific p…
View article: Buzzard to Cardinal: Improved Mock Catalogs for Large Galaxy Surveys
Buzzard to Cardinal: Improved Mock Catalogs for Large Galaxy Surveys Open
We present the Cardinal mock galaxy catalogs, a new version of the Buzzard simulation that has been updated to support ongoing and future cosmological surveys, including the Dark Energy Survey (DES), DESI, and LSST. These catalogs are base…
View article: DESI luminous red galaxy samples for cross-correlations
DESI luminous red galaxy samples for cross-correlations Open
We present two galaxy samples, selected from DESI Legacy Imaging Surveys (LS) DR9, with approximately 20,000 square degrees of coverage and spectroscopic redshift distributions designed for cross-correlations such as with CMB lensing, gala…
View article: DES Y3 + KiDS-1000: Consistent cosmology combining cosmic shear surveys
DES Y3 + KiDS-1000: Consistent cosmology combining cosmic shear surveys Open
We present a joint cosmic shear analysis of the Dark Energy Survey (DES Y3) and the Kilo-Degree Survey (KiDS-1000) in a collaborative effort between the two survey teams. We find consistent cosmological parameter constraints between DES Y3…
View article: Mitigating the noise of DESI mocks using analytic control variates
Mitigating the noise of DESI mocks using analytic control variates Open
In order to address fundamental questions related to the expansion history of the Universe and its primordial nature with the next generation of galaxy experiments, we need to model reliably large-scale structure observables such as the co…
View article: Dark Energy Survey Year 3 results: redshift calibration of the <scp>MagLim</scp> lens sample from the combination of SOMPZ and clustering and its impact on cosmology
Dark Energy Survey Year 3 results: redshift calibration of the <span>MagLim</span> lens sample from the combination of SOMPZ and clustering and its impact on cosmology Open
We present an alternative calibration of the MagLim lens sample redshift distributions from the Dark Energy Survey (DES) first 3 yr of data (Y3). The new calibration is based on a combination of a self-organizing-map-based scheme and clust…
View article: DESI Complete Calibration of the Color-Redshift Relation (DC3R2): Results from early DESI data
DESI Complete Calibration of the Color-Redshift Relation (DC3R2): Results from early DESI data Open
The data and python code used to reproduce the figures in the paper of the same name, J. McCullough et al.
View article: The Dark Energy Survey Year 3 high-redshift sample: selection, characterization, and analysis of galaxy clustering
The Dark Energy Survey Year 3 high-redshift sample: selection, characterization, and analysis of galaxy clustering Open
The fiducial cosmological analyses of imaging surveys like DES typically probe the Universe at redshifts z < 1. We present the selection and characterization of high-redshift galaxy samples using DES Year 3 data, and the analysis of the…
View article: Aemulus ν: precise predictions for matter and biased tracer power spectra in the presence of neutrinos
Aemulus ν: precise predictions for matter and biased tracer power spectra in the presence of neutrinos Open
We present the Aemulus ν simulations: a suite of 150 (1.05 h -1 Gpc) 3 N -body simulations with a mass resolution of 3.51 × 10 10 Ω cb /0.3 h -1 M ⊙ in a wν CDM cosmological parameter space. The simulations have been explicitly designed to…
View article: NANCY: Next-generation All-sky Near-infrared Community surveY
NANCY: Next-generation All-sky Near-infrared Community surveY Open
The Nancy Grace Roman Space Telescope is capable of delivering an unprecedented all-sky, high-spatial resolution, multi-epoch infrared map to the astronomical community. This opportunity arises in the midst of numerous ground- and space-ba…
View article: A data compression and optimal galaxy weights scheme for Dark Energy Spectroscopic Instrument and weak lensing data sets
A data compression and optimal galaxy weights scheme for Dark Energy Spectroscopic Instrument and weak lensing data sets Open
Combining different observational probes, such as galaxy clustering and weak lensing, is a promising technique for unveiling the physics of the Universe with upcoming dark energy experiments. The galaxy redshift sample from the Dark Energy…