activity
20202026
most citedDESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations

1.1k citations · 5k across the 74 of their papers we have counts for

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16 papers · 1 filter

astro-ph.CO2026

Field-level inference of growth rate from DESI BGS galaxy and ZTF supernova simulations

Corentin Ravoux, Bastien Carreres, Julian Bautista +60

Galaxy peculiar velocities are a powerful probe of the growth rate of structure at low redshifts (), measured through the combination . These constraints are imp…

astro-ph.CO2026

Optical Depths from the Thermal Sunyaev-Zel'dovich Effect with ACT DR6 and DESI DR1 Spectroscopic Galaxies and Optically-Selected Clusters

J. E. Moore, C. Popik, Y. Gong +66

We present stacked thermal Sunyaev-Zel'dovich (tSZ) effect measurements for three samples of galaxy groups and clusters: those traced by the Dark Energy Spectroscopic Instrument Da…

astro-ph.CO2026

A Unified Tracer Analysis of DESI DR2 Baryon Acoustic Oscillations

N. Sanders, H. Seo, M. Rashkovetskyi +65

We improve upon previous efforts to optimally combine overlapping galaxy samples in the DESI baryon acoustic oscillation analysis. By weighting each galaxy by its linear bias, over…

astro-ph.CO2026

Lyman Break Galaxy selection and redshift measurement with supervised contrastive learning

J. Choppin de Janvry, C. Yèche, Arjun Dey +55

Some of the next steps for high-precision cosmology lie within the high-redshift, high-density universe. Spectroscopic survey experiments such as the Dark Energy Spectroscopic Inst…

astro-ph.CO2026

Validation of the DESI DR2 Ly forest full-shape analysis

M. Herbold, A. Cuceu, P. Martini +100

We present the validation of the Dark Energy Spectroscopic Instrument (DESI) Data Release 2 (DR2) Lyman- (Ly) forest full-shape analysis. This analysis combines three-dimensi…

astro-ph.CO2026

DESI DR2 Results IV: Alcock-Paczyński Measurements from the Lyman Alpha Forest and Cosmological Constraints

DESI Collaboration, A. G. Adame, J. Aguilar +152

We present Alcock-Paczyński (AP) measurements from the full shape of Lyman- (Ly) forest correlation functions measured from the second data release (DR2) of the Dark Energy S…

astro-ph.CO2026

Probing the matter-dominated expansion with multi-redshift Lyman- BAO from DESI DR2

Hiram K. Herrera-Alcantar, Julien Guy, Alma X. Gonzalez-Morales +60

We present a multi-redshift Baryon Acoustic Oscillations (BAO) analysis of the DESI Data Release 2 (DR2) Lyman- (Ly) forest, splitting the forest auto-correlation and its cro…

astro-ph.CO2026

Measuring local primordial non-Gaussianity from the clustering of DESI DR1 LRGs and QSOs

Z. Brown, B. Levi, H. Randall +42

We report the first measurement of primordial non-Gaussianity (PNG), parameterized by , in the configuration space two-point correlation function (2pcf). We employ…

astro-ph.CO2026

Precision Kinematic Sunyaev--Zel'dovich Measurements Across Halo Mass and Redshift with DESI DR2 and ACT DR6: Part II. Bright Galaxy Survey and Emission-Line Galaxies

B. Hadzhiyska, S. Ferraro, F. J. Qu +50

We present the first high-significance spectroscopic stacked kinetic Sunyaev-Zel'dovich (kSZ) measurements of circumgalactic gas profiles for both Bright Galaxy Survey (BGS) and Em…

astro-ph.CO2026

Local primordial non-Gaussianity using cross-correlations of DESI tracers

A. J. Rosado-Marín, A. J. Ross, H. Seo +46

We constrain local primordial non-Gaussianity by a combined analysis of auto and cross-correlations of DESI DR1 tracers, leveraging LRGs and QSOs as well as ELGs between $0.8<z<3.1…

astro-ph.CO2026

Measurement of the galaxy-velocity power spectrum of DESI tracers with the kinematic Sunyaev-Zeldovich effect using DESI DR2 and ACT DR6

Edmond Chaussidon, Selim C. Hotinli, Simone Ferraro +49

Joint analyses of high-resolution CMB temperature maps with galaxy surveys provide a unique way to reconstruct the radial velocity field of the underlying matter distribution via t…

astro-ph.CO2026

Precision Kinematic Sunyaev--Zel'dovich Measurements Across Halo Mass and Redshift with DESI DR2 and ACT DR6: Part I. Luminous Red Galaxies

F. J. Qu, B. Ried Guachalla, E. Schaan +51

We present the most precise measurements of the kinetic Sunyaev-Zel'dovich (kSZ) effect around luminous red galaxies to date, detecting the signal at significance in both har…

astro-ph.CO2026

The Marked Power Spectrum as a Practical Bispectrum Measure for Galaxy Redshift Surveys

Haruki Ebina, Martin White, Edmond Chaussidon

Modern datasets have the precision necessary to uncover new information by including higher-order, non-Gaussian information into cosmological inference. The marked power spectrum o…

astro-ph.GA2026

Highly Efficient Selection of High-Redshift Emission-Line Galaxies for future DESI-like surveys with Deep Multi-band Imaging

Yoquelbin Salcedo Hernandez, Jeffrey A. Newman, Brett. H. Andrews +53

Emission-line galaxies (ELGs) are an important tracer of baryon acoustic oscillations (BAO) and large-scale structure (LSS) at . In this work, we investigate the feasibility…

astro-ph.CO2026

Assembly bias and local Primordial non-Gaussianity from DESI DR1 Quasars

E. Fondi, L. Verde, E. Chaussidon +40

The analysis of the large-scale clustering of quasars (QSO) observed by the Dark Energy Spectroscopic Instrument (DESI) represents a promising avenue for constraining local Primord…

astro-ph.CO2026

Baryon Acoustic Oscillations from the C IV Forest with DESI DR2

Abby Bault, Andrei Cuceu, Julien Guy +53

We present a measurement of Baryon Acoustic Oscillations (BAO) in the cross-correlation of triply ionized carbon C IV absorption with the positions of quasars (QSO) and Emission Li…