activity
20242026
most citedMitigation of DESI fiber assignment incompleteness effect on two-point clustering with small angular scale truncated estimators

30 citations · 78 across the 24 of their papers we have counts for

collaborators

28 papers

astro-ph.GA2026

Self Calibrated Galaxy Groups from the DESI DR1 Bright Galaxy Survey

I. Williams, J. Tinker, K. Wang +45

We present a galaxy group catalog built from Data Release 1 of the Dark Energy Spectroscopic Instrument (DESI) Bright Galaxy Survey, using the Self Calibrated Group Finder. The alg…

astro-ph.CO2026

Intrinsic Tidal Shear at the Largest Scales: Galaxy Multiplet Alignment in DESI DR2

C. Lamman, J. Aguilar, S. Ahlen +45

We measure the intrinsic alignment (IA) of galaxy multiplets with the large-scale tidal field traced by galaxy positions in DESI Data Release 2. Using the BGS, LRG, and ELG samples…

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

DESI DR2 Reference Mocks: Clustering results from UCHUU ELGs and QSOs

R. Vaisakh, J. Lasker, R. Kehoe +44

High-redshift galaxy clustering provides a powerful probe of the growth of structure, testing models of dark matter, dark energy, and galaxy formation during the epoch when the Uni…

astro-ph.CO2026

Clustering of high-redshift quasars with DESI DR2

M. Charles, P. Martini, A. J. Ross +46

We present clustering measurements for high-redshift quasars using data from the Dark Energy Spectroscopic Instrument Data Release 2. Our sample consists of quasars with $2.0 < z <…

astro-ph.CO2026

The 3D clustering of Lyman Alpha Emitters measured with DESI

Haruki Ebina, Martin J. White, Rongpu Zhou +44

We present a clustering analysis of Lyman- emitters (LAEs) using spectroscopic observations from the Dark Energy Spectroscopic Instrument (DESI) of candidates selected from the…

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

DESI Data Release 2 ELGs: Property-dependent subsamples, imaging systematics, and clustering

T. Hagen, K. S. Dawson, Z. Zheng +42

Using emission-line galaxies (ELGs) from the Dark Energy Spectroscopic Instrument (DESI) Data Release 2, we evaluate a property-dependent correction to imaging systematics. We deri…

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.IM2026

Large Scale Spectrophotometric Relative Flux Calibration for the Roman High Latitude Wide Area Survey

Alan B. H. Nguyen, Gregory Walth, Ashley J. Ross +4

We consider the application of a ubercalibration-like relative flux calibration to the grism observations of the Roman High Latitude Wide Area Survey (HLWAS). We propose a simplifi…

astro-ph.CO2026

Cosmological constraints from a joint DESI DR1 Full-Shape and DR2 BAO

D. Forero-Sánchez, H. Gil-Marín, L. Verde +61

We present a cosmological analysis combining full-shape (FS) clustering measurements from the Dark Energy Spectroscopic Instrument (DESI) DR1 with baryon acoustic oscillation (BAO)…

astro-ph.CO2025★ 1 cited

Galaxy-Multiplet Clustering from DESI DR2

Hanyue Wang, Daniel J. Eisenstein, Jessica Nicole Aguilar +44

We present an efficient estimator for higher-order galaxy clustering using small groups of nearby galaxies, or multiplets. Using the Luminous Red Galaxy (LRG) sample from the Dark…

astro-ph.CO2025

Study of the Connected Four-Point Correlation Function of Galaxies from DESI Data Release 1 Luminous Red Galaxy Sample

J. Hou, R. N. Cahn, J. Aguilar +43

We present a measurement of the non-Gaussian four-point correlation function (4PCF) from the DESI DR1 Luminous Red Galaxy (LRG) sample. For the gravitationally induced parity-even…

astro-ph.CO2025

Measurement of Parity-Violating Modes of the Dark Energy Spectroscopic Instrument (DESI) Year 1 Luminous Red Galaxies' 4-Point Correlation Function

Zachary Slepian, Alex Krolewski, Alessandro Greco +38

Here we report the first measurement of the parity-violating (PV) 4-Point Correlation Function (4PCF) of the Dark Energy Spectroscopic Instrument's Year 1 Luminous Red Galaxy (DESI…

astro-ph.CO2025

Clustering of DESI galaxies split by thermal Sunyaev-Zeldovich effect

M. Rashkovetskyi, D. J. Eisenstein, J. Aguilar +46

The thermal Sunyaev-Zeldovich (tSZ) effect is associated with galaxy clusters - extremely large and dense structures tracing the dark matter with a higher bias than isolated galaxi…

astro-ph.CO2025★ 10 cited

Extended Dark Energy analysis using DESI DR2 BAO measurements

K. Lodha, R. Calderon, W. L. Matthewson +122

We conduct an extended analysis of dark energy constraints, in support of the findings of the DESI DR2 cosmology key paper, including DESI data, Planck CMB observations, and three…

astro-ph.CO2025★ 3 cited

Constraints on Neutrino Physics from DESI DR2 BAO and DR1 Full Shape

W. Elbers, A. Aviles, H. E. Noriega +116

The Dark Energy Spectroscopic Instrument (DESI) Collaboration has obtained robust measurements of baryon acoustic oscillations (BAO) in the redshift range, , based o…

astro-ph.CO2025★ 2 cited

The Spectroscopic Stage-5 Experiment

Robert Besuner, Arjun Dey, Alex Drlica-Wagner +106

The existence, properties, and dynamics of the dark sectors of our universe pose fundamental challenges to our current model of physics, and large-scale astronomical surveys may be…

astro-ph.GA2025

Luminosity and stellar mass functions of faint photometric satellites around spectroscopic central galaxies from DESI Year-1 Bright Galaxy Survey

Wenting Wang, Xiaohu Yang, Yipeng Jing +47

We measure the luminosity functions (LFs) and stellar mass functions (SMFs) of photometric satellite galaxies around spectroscopically identified isolated central galaxies (ICGs).…

astro-ph.CO2025★ 2 cited

Studying baryon acoustic oscillations using photometric redshifts from the DESI Legacy Imaging survey DR9

Christoph Saulder, Yong-Seon Song, Minji Oh +41

Context.The Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Survey DR9 (DR9 hereafter), with its extensive dataset of galaxy locations and photometric redshifts, present…

astro-ph.GA2024★ 9 cited

Stellar reddening map from DESI imaging and spectroscopy

Rongpu Zhou, Julien Guy, Sergey E. Koposov +54

We present new Galactic dust reddening maps of the high Galactic latitude sky using DESI imaging and spectroscopy. We directly measure the reddening of 2.6 million stars by compari…

astro-ph.CO2024★ 30 cited

Mitigation of DESI fiber assignment incompleteness effect on two-point clustering with small angular scale truncated estimators

M. Pinon, A. de Mattia, P. McDonald +50

We present a method to mitigate the effects of fiber assignment incompleteness in two-point power spectrum and correlation function measurements from galaxy spectroscopic surveys,…

astro-ph.CO2024★ 1 cited

Impact and mitigation of spectroscopic systematics on DESI DR1 clustering measurements

A. Krolewski, J. Yu, A. J. Ross +40

The large scale structure catalogs within DESI Data Release 1 (DR1) use nearly 6 million galaxies and quasars as tracers of the large-scale structure of the universe to measure the…

astro-ph.CO2024★ 17 cited

ELG Spectroscopic Systematics Analysis of the DESI Data Release 1

Jiaxi Yu, Ashley J. Ross, Antoine Rocher +58

Dark Energy Spectroscopic Instrument (DESI) uses more than 2.4 million Emission Line Galaxies (ELGs) for 3D large-scale structure (LSS) analyses in its Data Release 1 (DR1). Such l…