output
19912026
Showing 2024 · astro-ph.COShow all

21 papers · 2 filters

astro-ph.CO2024

The DESI-Lensing Mock Challenge: large-scale cosmological analysis of 3x2-pt statistics

C. Blake, C. Garcia-Quintero, S. Ahlen +41

The current generation of large galaxy surveys will test the cosmological model by combining multiple types of observational probes. Realising the statistical promise of these new…

astro-ph.CO2024★ 2 cited

A New Census of the Universe's Entropy

Stefano Profumo, Liam Colombo-Murphy, Gabriela Huckabee +4

The question of what is the total entropy of the universe, how it compares to the maximal entropy of de Sitter space, and how it is distributed across the universe's components, be…

astro-ph.CO2024★ 187 cited

DESI 2024 VII: Cosmological Constraints from the Full-Shape Modeling of Clustering Measurements

DESI Collaboration, A. G. Adame, J. Aguilar +210

We present cosmological results from the measurement of clustering of galaxy, quasar and Lyman- forest tracers from the first year of observations with the Dark Energy Spectrosc…

astro-ph.CO2024★ 81 cited

DESI 2024 II: Sample Definitions, Characteristics, and Two-point Clustering Statistics

DESI Collaboration, A. G. Adame, J. Aguilar +200

We present the samples of galaxies and quasars used for DESI 2024 cosmological analyses, drawn from the DESI Data Release 1 (DR1). We describe the construction of large-scale struc…

astro-ph.CO2024★ 9 cited

Black Holes from Fermi Ball Collapse

Yifan Lu, Zachary S. C. Picker, Stefano Profumo +1

Fermi balls are non-topological solitons that can naturally form in an early universe containing a dark sector with heavy fermions and an attractive interaction mediated by a light…

astro-ph.CO2024★ 48 cited

Modified Gravity Constraints from the Full Shape Modeling of Clustering Measurements from DESI 2024

M. Ishak, J. Pan, R. Calderon +68

We present cosmological constraints on deviations from general relativity (GR) from the first-year of clustering observations from Dark Energy Spectroscopic Instrument (DESI) in co…

astro-ph.CO2024★ 73 cited

DESI 2024 V: Full-Shape Galaxy Clustering from Galaxies and Quasars

A. G. Adame, J. Aguilar, S. Ahlen +195

We present the measurements and cosmological implications of the galaxy two-point clustering using over 4.7 million unique galaxy and quasar redshifts in the range divi…

astro-ph.CO2024★ 7 cited

Modeling the Cosmic Dispersion Measure in the D < 120 Mpc Local Universe

Yuxin Huang, Khee-Gan Lee, Noam I. Libeskind +3

The Local Universe (D < 120 Mpc) has been intensely studied for decades, with highly complete galaxy redshift surveys now publicly available. These data have driven density reconst…

astro-ph.CO2024★ 7 cited

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…

astro-ph.CO2024

Constraints on gravity from tSZE-selected SPT galaxy clusters and weak lensing mass calibration from DES and HST

S. M. L. Vogt, S. Bocquet, C. T. Davies +52

We present constraints on the gravity model using a sample of 1,005 galaxy clusters in the redshift range that have been selected through the thermal Sunyaev-Z…

astro-ph.CO2024★ 4 cited

Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey: II. Anisotropic large-scale coherence in hot gas, galaxies, and dark matter

M. Lokken, A. van Engelen, M. Aguena +73

Statistics that capture the directional dependence of the baryon distribution in the cosmic web enable unique tests of cosmology and astrophysical feedback. We use constrained orie…

astro-ph.CO2024

Enhancing weak lensing redshift distribution characterization by optimizing the Dark Energy Survey Self-Organizing Map Photo-z method

A. Campos, B. Yin, S. Dodelson +111

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-Organ…

astro-ph.CO2024

Galaxy cluster matter profiles: I. Self-similarity, mass calibration, and observable-mass relation validation employing cluster mass posteriors

A. Singh, J. J. Mohr, C. T. Davies +50

We present a study of the weak lensing inferred matter profiles of 698 South Pole Telescope thermal Sunyaev-Zel'dovich effect selected and MCMF optically confirmed galaxy c…

astro-ph.CO2024★ 10 cited

NuSTAR as an Axion Helioscope

J. Ruz, E. Todarello, J. K. Vogel +11

We present a novel approach to investigating axions and axion-like particles (ALPs) by studying their potential conversion into X-rays within the Sun's atmospheric magnetic field.…

astro-ph.CO2024★ 263 cited

DESI 2024 III: Baryon Acoustic Oscillations from Galaxies and Quasars

DESI Collaboration, A. G. Adame, J. Aguilar +193

We present the DESI 2024 galaxy and quasar baryon acoustic oscillations (BAO) measurements using over 5.7 million unique galaxy and quasar redshifts in the range 0.1<z<2.1. Divided…

astro-ph.CO2024★ 1.1k cited

DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations

DESI Collaboration, A. G. Adame, J. Aguilar +200

We present cosmological results from the measurement of baryon acoustic oscillations (BAO) in galaxy, quasar and Lyman- forest tracers from the first year of observations from t…

astro-ph.CO2024★ 254 cited

DESI 2024 IV: Baryon Acoustic Oscillations from the Lyman Alpha Forest

DESI Collaboration, A. G. Adame, J. Aguilar +196

We present the measurement of Baryon Acoustic Oscillations (BAO) from the Lyman- (Ly) forest of high-redshift quasars with the first-year dataset of the Dark Energy Spectrosc…

astro-ph.CO2024★ 4 cited

Dark Energy Survey Year 3 results: likelihood-free, simulation-based CDM inference with neural compression of weak-lensing map statistics

N. Jeffrey, L. Whiteway, M. Gatti +88

We present simulation-based cosmological CDM inference using Dark Energy Survey Year 3 weak-lensing maps, via neural data compression of weak-lensing map summary statistics: pow…

astro-ph.CO2024

Copacabana: A Probabilistic Membership Assignment Method for Galaxy Clusters

J. H. Esteves, M. E. S. Pereira, M. Soares-Santos +52

Cosmological analyses using galaxy clusters in optical/NIR photometric surveys require robust characterization of their galaxy content. Precisely determining which galaxies belong…

astro-ph.CO2024★ 37 cited

The Dark Energy Survey: Cosmology Results With ~1500 New High-redshift Type Ia Supernovae Using The Full 5-year Dataset

DES Collaboration, T. M. C. Abbott, M. Acevedo +156

We present cosmological constraints from the sample of Type Ia supernovae (SN Ia) discovered during the full five years of the Dark Energy Survey (DES) Supernova Program. In contra…

astro-ph.CO2024★ 10 cited

Euclid preparation: XLVIII. The pre-launch Science Ground Segment simulation framework

Euclid Collaboration, S. Serrano, P. Hudelot +274

The European Space Agency's Euclid mission is one of the upcoming generation of large-scale cosmology surveys, which will map the large-scale structure in the Universe with unprece…