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View article: Biasing from galaxy trough and peak profiles with the DES Y3 redMaGiC galaxies and the weak lensing mass map
Biasing from galaxy trough and peak profiles with the DES Y3 redMaGiC galaxies and the weak lensing mass map Open
We measure the correspondence between the distribution of galaxies and matter around troughs and peaks in the projected galaxy density, by comparing redMaGiC galaxies (0.15 < z < 0.65) to weak lensing mass maps from the Dark Energy S…
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: OzDES Reverberation Mapping of Active Galactic Nuclei: Final Data Release, Black-Hole Mass Results, & Scaling Relations
OzDES Reverberation Mapping of Active Galactic Nuclei: Final Data Release, Black-Hole Mass Results, & Scaling Relations Open
Over the last decade, the Australian Dark Energy (OzDES) collaboration has used Reverberation Mapping to measure the masses of high redshift supermassive black holes. Here we present the final review and analysis of this OzDES reverberatio…
View article: Cosmology with second- and third-order shear statistics for the Dark Energy Survey: Methods and simulated analysis
Cosmology with second- and third-order shear statistics for the Dark Energy Survey: Methods and simulated analysis Open
We present a new pipeline designed for the robust inference of cosmological parameters using both second- and third-order shear statistics. We build a theoretical model for rapid evaluation of three-point correlations using our fastnc code…
View article: The DECADE cosmic shear project III: validation of analysis pipeline using spatially inhomogeneous data
The DECADE cosmic shear project III: validation of analysis pipeline using spatially inhomogeneous data Open
We present the pipeline for the cosmic shear analysis of the Dark Energy Camera All Data Everywhere (DECADE) weak lensing dataset: a catalog consisting of 107 million galaxies observed by the Dark Energy Camera (DECam) in the northern Gala…
View article: Impact of projection-induced optical selection bias on the weak lensing mass calibration of galaxy clusters
Impact of projection-induced optical selection bias on the weak lensing mass calibration of galaxy clusters Open
Weak gravitational lensing signals of optically identified clusters are impacted by a selection bias -- halo triaxiality and large-scale structure along the line of sight simultaneously boost the lensing signal and richness (the inferred n…
View article: A DECADE of dwarfs: first detection of weak lensing around spectroscopically confirmed low-mass galaxies
A DECADE of dwarfs: first detection of weak lensing around spectroscopically confirmed low-mass galaxies Open
We present the first detection of weak gravitational lensing around spectroscopically confirmed dwarf galaxies, using the large overlap between DESI DR1 spectroscopic data and DECADE/DES weak lensing catalogs. A clean dwarf galaxy sample w…
View article: DELVE Milky Way Satellite Census I: Satellite Population and Survey Selection Function
DELVE Milky Way Satellite Census I: Satellite Population and Survey Selection Function Open
The properties of Milky Way satellite galaxies have important implications for galaxy formation, reionization, and the fundamental physics of dark matter. However, the population of Milky Way satellites includes the faintest known galaxies…
View article: Dark Energy Survey Year 6 Results: improved mitigation of spatially varying observational systematics with masking
Dark Energy Survey Year 6 Results: improved mitigation of spatially varying observational systematics with masking Open
As photometric surveys reach unprecedented statistical precision, systematic uncertainties increasingly dominate large-scale structure probes relying on galaxy number density. Defining the final survey footprint is critical, as it excludes…
View article: Dark Energy Survey Year 6 Results: Redshift Calibration of the MagLim++ Lens Sample
Dark Energy Survey Year 6 Results: Redshift Calibration of the MagLim++ Lens Sample Open
In this work, we derive and calibrate the redshift distribution of the MagLim++ lens galaxy sample used in the Dark Energy Survey Year 6 (DES Y6) 3x2pt cosmology analysis. The 3x2pt analysis combines galaxy clustering from the lens galaxy …
View article: The Dark Energy Camera All Data Everywhere cosmic shear project V: Constraints on cosmology and astrophysics from 270 million galaxies across 13,000 deg$^2$ of the sky
The Dark Energy Camera All Data Everywhere cosmic shear project V: Constraints on cosmology and astrophysics from 270 million galaxies across 13,000 deg$^2$ of the sky Open
We present constraints on models of cosmology and astrophysics using cosmic shear data vectors from three datasets: the northern and southern Galactic cap of the Dark Energy Camera All Data Everywhere (DECADE) project, and the Dark Energy …
View article: Entropy-Bounded Computational Geometry Made Easier and Sensitive to Sortedness
Entropy-Bounded Computational Geometry Made Easier and Sensitive to Sortedness Open
We study entropy-bounded computational geometry, that is, geometric algorithms whose running times depend on a given measure of the input entropy. Specifically, we introduce a measure that we call range-partition entropy, which unifies and…
View article: Dark energy survey: Modeling strategy for multiprobe cluster cosmology and validation for the full six-year dataset
Dark energy survey: Modeling strategy for multiprobe cluster cosmology and validation for the full six-year dataset Open
We introduce an updated To&Krause2021 model for joint analyses of cluster abundances and large-scale two-point correlations of weak lensing and galaxy and cluster clustering (termed CL+3x2pt analysis) and validate that this model meets the…
View article: Comparing the DES-SN5YR and Pantheon+ SN cosmology analyses: investigation based on ‘evolving dark energy or supernovae systematics’?
Comparing the DES-SN5YR and Pantheon+ SN cosmology analyses: investigation based on ‘evolving dark energy or supernovae systematics’? Open
Recent cosmological analyses measuring distances of type Ia supernovae (SNe Ia) and baryon acoustic oscillations (BAO) have all given similar hints at time-evolving dark energy. To examine whether underestimated SN Ia systematics might be …
View article: Deciphering Baryonic Feedback from ACT tSZ Galaxy Clusters
Deciphering Baryonic Feedback from ACT tSZ Galaxy Clusters Open
The next generation of cosmology surveys will probe the matter distribution of the universe to unparalleled precision. To match this level of precision in cosmological parameter estimation, we need to use information at small scales of $\s…
View article: A sound horizon-free measurement of <i>H</i> <sub>0</sub> in DESI 2024
A sound horizon-free measurement of <i>H</i> <sub>0</sub> in DESI 2024 Open
The physical size of the sound horizon at recombination is a powerful source of information for early-time measurements of the Hubble constant H 0 , and many proposed solutions to the Hubble tension therefore involve modifications to this …
View article: Robustness of Pairwise Kinematic SZ Effect to Optical Cluster Selection Bias
Robustness of Pairwise Kinematic SZ Effect to Optical Cluster Selection Bias Open
The pairwise Kinematic Sunyaev-Zel'dovich (kSZ) measures both the pairwise motion between massive groups and the amount of gas within them, providing a tracer for the cosmic growth. To interpret the cosmological information in kSZ, it is c…
View article: Year six photometric measurements of known Trans-Neptunian Objects and Centaurs by the Dark Energy Survey
Year six photometric measurements of known Trans-Neptunian Objects and Centaurs by the Dark Energy Survey Open
We identified known Trans-Neptunian Objects (TNOs) and Centaurs in the complete Dark Energy Survey (DES) year six catalogue (DES Y6) through the Sky Body Tracker (SkyBoT) tool. We classified our data set of 144 objects into a widely used 4…
View article: Constraining cosmological parameters using the pairwise kinematic Sunyaev-Zel’dovich effect with CMB-S4 and future galaxy cluster surveys
Constraining cosmological parameters using the pairwise kinematic Sunyaev-Zel’dovich effect with CMB-S4 and future galaxy cluster surveys Open
We present a forecast of the pairwise kinematic Sunyaev-Zel'dovich (kSZ) measurement that will be achievable with the future CMB-S4 experiment. CMB-S4 is the next stage for ground-based cosmic microwave background experiments, with a plann…
View article: Dark Energy Survey Year 3 Results: Cosmological Constraints from Cluster Abundances, Weak Lensing, and Galaxy Clustering
Dark Energy Survey Year 3 Results: Cosmological Constraints from Cluster Abundances, Weak Lensing, and Galaxy Clustering Open
Galaxy clusters provide a unique probe of the late-time cosmic structure and serve as a powerful independent test of the $\Lambda$CDM model. This work presents the first set of cosmological constraints derived with ~16,000 optically select…
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: The DECADE cosmic shear project III: validation of analysis pipeline using spatially inhomogeneous data
The DECADE cosmic shear project III: validation of analysis pipeline using spatially inhomogeneous data Open
We present the pipeline for the cosmic shear analysis of the Dark Energy Camera All Data Everywhere (DECADE) weak lensing dataset: a catalog consisting of 107 million galaxies observed by the Dark Energy Camera (DECam) in the northern Gala…
View article: Selection Function of Clusters in Dark Energy Survey Year 3 Data from Cross-Matching with South Pole Telescope Detections
Selection Function of Clusters in Dark Energy Survey Year 3 Data from Cross-Matching with South Pole Telescope Detections Open
Galaxy clusters selected based on overdensities of galaxies in photometric surveys provide the largest cluster samples. Yet modeling the selection function of such samples is complicated by non-cluster members projected along the line of s…
View article: Calibrating the absolute magnitude of type Ia supernovae in nearby galaxies using [O <scp>ii</scp>] and implications for <i>H</i>0
Calibrating the absolute magnitude of type Ia supernovae in nearby galaxies using [O <span>ii</span>] and implications for <i>H</i>0 Open
The present state of cosmology is facing a crisis where there is a fundamental disagreement in measurements of the Hubble constant ($H_{0}$), with significant tension between the early and late Universe methods. Type Ia supernovae (SNe Ia)…
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: Evaluating cosmological biases using photometric redshifts for Type Ia Supernova cosmology with the Dark Energy Survey Supernova Program
Evaluating cosmological biases using photometric redshifts for Type Ia Supernova cosmology with the Dark Energy Survey Supernova Program Open
Cosmological analyses with Type Ia Supernovae (SNe Ia) have traditionally been reliant on spectroscopy for both classifying the type of supernova and obtaining reliable redshifts to measure the distance–redshift relation. While obtaining a…
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: Optical galaxy cluster mock catalogs with realistic projection effects: Validations with the SDSS clusters
Optical galaxy cluster mock catalogs with realistic projection effects: Validations with the SDSS clusters Open
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 and boost the observed richness (the number of cluster mem…
View article: Dark Energy Survey: Galaxy sample for the baryonic acoustic oscillation measurement from the final dataset
Dark Energy Survey: Galaxy sample for the baryonic acoustic oscillation measurement from the final dataset Open
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM
View article: Calibrating the Absolute Magnitude of Type Ia Supernovae in Nearby Galaxies using [OII] and Implications for $H_{0}$
Calibrating the Absolute Magnitude of Type Ia Supernovae in Nearby Galaxies using [OII] and Implications for $H_{0}$ Open
The present state of cosmology is facing a crisis where there is a fundamental disagreement in measurements of the Hubble constant ($H_{0}$), with significant tension between the early and late universe methods. Type Ia supernovae (SNe Ia)…