Publications (103)
4MOST: Project overview and information for the First Call for Proposals
R. S. de Jong, O. Agertz, A. Agudo Berbel +335
We introduce the 4-metre Multi-Object Spectroscopic Telescope (4MOST), a new high-multiplex, wide-field spectroscopic survey facility under development for the four-metre-class Vis…
4MOST Consortium Survey 8: Cosmology Redshift Survey (CRS)
J. Richard, J. -P. Kneib, C. Blake +14
The 4MOST Cosmology Redshift Survey (CRS) will perform stringent cosmological tests via spectroscopic clustering measurements that will complement the best lensing, cosmic microwav…
The DESI DR1 Peculiar Velocity Survey: growth rate measurements from the maximum likelihood fields method
Y. Lai, C. Howlett, J. Aguilar +60
We present the constraint on the growth rate of structure from the combination of DESI DR1 BGS sample, Fundamental Plane, and Tully-Fisher peculiar velocity catalogues using the ma…
Updated cosmological constraints on axion dark energy with DESI
L. A. Ureña-López, F. Lozano-RodrÃguez, J. O. Román-Herrera +35
We present updated constraints on the parameters of an axion dark energy model, for which we took into account the properties of its characteristic potential and its full cosmologi…
Construction of the Damped Ly Absorber Catalog for DESI DR2 Ly BAO
A. Brodzeller, M. Wolfson, D. M. Santos +96
We present the Damped Ly Toolkit for automated detection and characterization of Damped Ly absorbers (DLA) in quasar spectra. Our method uses quasar spectral templates with…
Combined tracer analysis for DESI 2024 BAO
D. Valcin, M. Rashkovetskyi, H. Seo +64
This paper demonstrates how the Dark Energy Spectroscopic Instrument (DESI) Data Release 1 (DR1) and future baryon acoustic oscillations (BAO) analyses can optimally combine overla…
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…
Direct Measurement of Galaxy Assembly Bias using DESI DR1 Data
Zhiwei Shao, Ying Zu, Andrés N. Salcedo +54
We report the first direct measurement of galaxy assembly bias, a critical systematic in cosmology, from the Dark Energy Spectroscopic Instrument (DESI) Bright Galaxy Survey. We in…
Emulating galaxy and peculiar velocity clustering on non-linear scales
T. Dumerchat, J. Bautista, C. Ravoux +37
We explore the potential of cross-correlating galaxies and peculiar velocities on non-linear scales to enhance cosmological constraints. Leveraging the \textsc{AbacusSummit} simula…
Characterization of DESI fiber assignment incompleteness effect on 2-point clustering and mitigation methods for DR1 analysis
D. Bianchi, M. M. S Hanif, A. Carnero Rosell +52
We present an in-depth analysis of the fiber assignment incompleteness in the Dark Energy Spectroscopic Instrument (DESI) Data Release 1 (DR1). This incompleteness is caused by the…
WALLABY -- An SKA Pathfinder HI Survey
B. S. Koribalski, L. Staveley-Smith, T. Westmeier +67
The Widefield ASKAP L-band Legacy All-sky Blind surveY (WALLABY) is a next-generation survey of neutral hydrogen (HI) in the Local Universe. It uses the widefield, high-resolution…
Exploring HOD-dependent systematics for the DESI 2024 Full-Shape galaxy clustering analysis
N. Findlay, S. Nadathur, W. J. Percival +39
We analyse the robustness of the DESI 2024 cosmological inference from the full shape of the galaxy power spectrum to uncertainties in the Halo Occupation Distribution (HOD) model…
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 <…
The DESI DR1 peculiar velocity survey: growth rate measurements from the galaxy power spectrum
F. Qin, C. Blake, C. Howlett +63
The large-scale structure of the Universe and its evolution encapsulate a wealth of cosmological information. A powerful means of unlocking this knowledge lies in measuring the aut…
Comparing Compressed and Full-modeling Analyses with FOLPS: Implications for DESI 2024 and beyond
H. E. Noriega, A. Aviles, H. Gil-MarÃn +51
The Dark Energy Spectroscopic Instrument (DESI) will provide unprecedented information about the large-scale structure of our Universe. In this work, we study the robustness of the…
DESI Spectroscopy of HETDEX Emission-line Candidates I: Line Discrimination Validation
Martin Landriau, Erin Mentuch Cooper, Dustin Davis +50
The Hobby-Eberly Dark Energy Experiment (HETDEX) is an untargeted spectroscopic galaxy survey that uses Ly emitting galaxies (LAEs) as tracers of 1.9 < z < 3.5 large scale stru…
Full-Shape analysis of the power spectrum and bispectrum of DESI DR1 LRG and QSO samples
S. Novell-Masot, H. Gil-MarÃn, L. Verde +66
We present the first joint analysis of the power spectrum and bispectrum using the Data Release 1 (DR1) of the Dark Energy Spectroscopic Instrument (DESI), focusing on Luminous Red…
The Early Data Release of the Dark Energy Spectroscopic Instrument
DESI Collaboration, A. G. Adame, J. Aguilar +266
The Dark Energy Spectroscopic Instrument (DESI) completed its five-month Survey Validation in May 2021. Spectra of stellar and extragalactic targets from Survey Validation constitu…
A comparison between Shapefit compression and Full-Modelling method with PyBird for DESI 2024 and beyond
Y. Lai, C. Howlett, M. Maus +40
DESI aims to provide one of the tightest constraints on cosmological parameters by analysing the clustering of more than thirty million galaxies. However, obtaining such constraint…
Cosmological implications of DESI DR2 BAO measurements in light of the latest ACT DR6 CMB data
C. Garcia-Quintero, H. E. Noriega, A. de Mattia +92
We report cosmological results from the Dark Energy Spectroscopic Instrument (DESI) measurements of baryon acoustic oscillations (BAO) when combined with recent data from the Ataca…
Constraining primordial non-Gaussianity with DESI 2024 LRG and QSO samples
E. Chaussidon, C. Yèche, A. de Mattia +49
We analyse the large-scale clustering of the Luminous Red Galaxy (LRG) and Quasar (QSO) sample from the first data release (DR1) of the Dark Energy Spectroscopic Instrument (DESI).…
Probing cosmic velocities with the pairwise kinematic Sunyaev-Zel'dovich signal in DESI Bright Galaxy Sample DR1 and ACT DR6
B. Hadzhiyska, Y. Gong, Y. Hsu +55
We present a measurement of the pairwise kinematic Sunyaev-Zel'dovich (kSZ) signal using the Dark Energy Spectroscopic Instrument (DESI) Bright Galaxy Sample (BGS) Data Release 1 (…
The DESI DR1 Peculiar Velocity Survey: global zero-point and constraints
A. Carr, C. Howlett, A. J. Amsellem +55
The Dark Energy Spectroscopic Instrument (DESI) in its first Data Release (DR1) already provides more than 100,000 galaxies with relative distance measurements. The primary purpose…
Identifying Anomalous DESI Galaxy Spectra with a Variational Autoencoder
C. Nicolaou, R. P. Nathan, O. Lahav +43
The tens of millions of spectra being captured by the Dark Energy Spectroscopic Instrument (DESI) provide tremendous discovery potential. In this work we show how Machine Learning,…
A joint analysis of 3D clustering and galaxy x CMB-lensing cross-correlations with DESI DR1 galaxies
M. Maus, M. White, N. Sailer +58
The spectroscopic data from DESI Data Release 1 (DR1) galaxies enables the analysis of 3D clustering by fitting galaxy power spectra and reconstructed correlation functions in reds…
The DESI DR1 Peculiar Velocity Survey: The Tully-Fisher Distance Catalog
K. Douglass, S. BenZvi, A. G. Kim +64
We calibrate the Tully-Fisher relation (TFR) using observations of spiral galaxies taken during the first year (DR1) of the DESI galaxy redshift survey. The rotational velocities o…
Archetype-Based Redshift Estimation for the Dark Energy Spectroscopic Instrument Survey
Abhijeet Anand, Julien Guy, Stephen Bailey +46
We present a computationally efficient galaxy archetype-based redshift estimation and spectral classification method for the Dark Energy Survey Instrument (DESI) survey. The DESI s…
Optimal Reconstruction of Baryon Acoustic Oscillations for DESI 2024
E. Paillas, Z. Ding, X. Chen +73
Baryon acoustic oscillations (BAO) provide a robust standard ruler to measure the expansion history of the Universe through galaxy clustering. Density-field reconstruction is now a…
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 Spectro…
DESI 2024: Reconstructing Dark Energy using Crossing Statistics with DESI DR1 BAO data
R. Calderon, K. Lodha, A. Shafieloo +52
We implement Crossing Statistics to reconstruct in a model-agnostic manner the expansion history of the universe and properties of dark energy, using DESI Data Release 1 (DR1) BAO…
The DESI Survey Validation: Results from Visual Inspection of Bright Galaxies, Luminous Red Galaxies, and Emission Line Galaxies
Ting-Wen Lan, R. Tojeiro, E. Armengaud +79
The Dark Energy Spectroscopic Instrument (DESI) Survey has obtained a set of spectroscopic measurements of galaxies to validate the final survey design and target selections. To as…
Inference of matter power spectrum at z=0 using DESI DR1 Full-Shape data
R. Cereskaite, E. Mueller, C. Howlett +48
Measurements of galaxy distributions at large cosmic distances capture clustering from the past. In this study, we use a cosmological model to translate these observations into the…
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…
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…
An effective description of Laniakea: impact on cosmology and the local determination of the Hubble constant
L. Giani, C. Howlett, K. Said +2
We propose an effective model to describe the bias induced on cosmological observables by Laniakea, the gravitational supercluster hosting the Milky Way, which was defined using pe…
Constraining primordial non-Gaussianity from the large scale structure two-point and three-point correlation functions
Z. Brown, R. Demina, A. G. Adame +47
Surveys of cosmological large-scale structure (LSS) are sensitive to the presence of local primordial non-Gaussianity (PNG), and may be used to constrain models of inflation. Local…
Suppressing the sample variance of DESI-like galaxy clustering with fast simulations
Z. Ding, A. Variu, S. Alam +44
Ongoing and upcoming galaxy redshift surveys, such as the Dark Energy Spectroscopic Instrument (DESI) survey, will observe vast regions of sky and a wide range of redshifts. In ord…
DESI DR2 Results I: Baryon Acoustic Oscillations from the Lyman Alpha Forest
DESI Collaboration, M. Abdul-Karim, J. Aguilar +147
We present the Baryon Acoustic Oscillation (BAO) measurements with the Lyman-alpha (LyA) forest from the second data release (DR2) of the Dark Energy Spectroscopic Instrument (DESI…
Candidate strongly lensed type Ia supernovae in the Zwicky Transient Facility archive
A. Townsend, J. Nordin, A. Sagués Carracedo +61
Gravitationally lensed type Ia supernovae (glSNe Ia) are unique astronomical tools that can be used to study cosmological parameters, distributions of dark matter, the astrophysics…
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…
The DESI DR1 Peculiar Velocity Survey: Fundamental Plane Catalogue
C. E. Ross, C. Howlett, J. R. Lucey +58
Measurements of peculiar velocities in the local Universe are a powerful tool to study the nature of dark energy at low () redshifts. Here we present the largest single se…
Validation of the Scientific Program for the Dark Energy Spectroscopic Instrument
DESI Collaboration, A. G. Adame, J. Aguilar +261
The Dark Energy Spectroscopic Instrument (DESI) was designed to conduct a survey covering 14,000 deg over five years to constrain the cosmic expansion history through precise m…
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…
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,…
Validation of the DESI DR2 Ly BAO analysis using synthetic datasets
L. Casas, H. K. Herrera-Alcantar, J. Chaves-Montero +95
The second data release (DR2) of the Dark Energy Spectroscopic Instrument (DESI), containing data from the first three years of observations, doubles the number of Lyman- (Ly$Î…
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…
Quality Assessment of Spectroscopic Data Reduction Pipelines Using Artificial Intelligence: Scrutinizing Data Release 2 from the DESI Survey
V. Torres-Gomez, J. Suarez-Perez, J. E. Forero-Romero +45
Large spectroscopic surveys now collect data at a scale that makes traditional visual inspection impractical. We present an unsupervised pipeline for spectroscopic quality assessme…
The DESI DR1 Peculiar Velocity Survey: growth rate measurements from galaxy and momentum correlation functions
R. J. Turner, C. Blake, F. Qin +61
Joint analysis of the local peculiar velocity and galaxy density fields offers a promising route to testing cosmological models of gravity. We present a measurement of the normalis…
Not all lensing is low: An analysis of DESIDES using the Lagrangian Effective Theory of LSS
S. Chen, J. DeRose, R. Zhou +39
In this work we use Lagrangian perturbation theory to analyze the harmonic space galaxy clustering signal of Bright Galaxy Survey (BGS) and Luminous Red Galaxies (LRGs) targeted by…
WALLABY Pilot Survey: Public release of HI data for almost 600 galaxies from phase 1 of ASKAP pilot observations
T. Westmeier, N. Deg, K. Spekkens +49
We present WALLABY pilot data release 1, the first public release of HI pilot survey data from the Wide-field ASKAP L-band Legacy All-sky Blind Survey (WALLABY) on the Australian S…
Semi-analytical covariance matrices for two-point correlation function for DESI 2024 data
M. Rashkovetskyi, D. Forero-Sánchez, A. de Mattia +57
We present an optimized way of producing the fast semi-analytical covariance matrices for the Legendre moments of the two-point correlation function, taking into account survey geo…
Fiducial-Cosmology-dependent systematics for the DESI 2024 Full-Shape Analysis
R. Gsponer, S. Ramirez-Solano, F. RodrÃguez-MartÃnez +65
We assess the impact of the fiducial cosmology choice on cosmological inference from full-shape (FS) fits of the galaxy power spectrum in the DESI 2024 Data Release 1 (DR1). Using…
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…
Without the Sound Horizon (or Supernovae): A 2% Measurement in DESI DR1
E. A. Zaborowski, P. Taylor, K. Honscheid +58
The sound horizon scale is a key source of information for early-time measurements, and is therefore a common target of new physics proposed to solve the Hubble tension…
Production of Alternate Realizations of DESI Fiber Assignment for Unbiased Clustering Measurement in Data and Simulations
J. Lasker, A. Carnero Rosell, A. D. Myers +52
A critical requirement of spectroscopic large scale structure analyses is correcting for selection of which galaxies to observe from an isotropic target list. This selection is oft…
Detection of supernova magnitude fluctuations induced by large-scale structure
A. Nguyen, C. Blake, R. J. Turner +56
The peculiar velocities of supernovae and their host galaxies are correlated with the large-scale structure of the Universe, and can be used to constrain the growth rate of structu…
Cosmological constraints from the DESI DR1 joint power spectrum and bispectrum analysis
S. Novell-Masot, H. Gil-MarÃn, L. Verde +48
We derive cosmological parameter constraints from the Dark Energy Spectroscopic Instrument (DESI) Data Release 1 (DR1) galaxy clustering data, based on a joint full-shape analysis…
An analysis of parameter compression and full-modeling techniques with Velocileptors for DESI 2024 and beyond
M. Maus, S. Chen, M. White +52
In anticipation of forthcoming data releases of current and future spectroscopic surveys, we present the validation tests and analysis of systematic effects within \texttt{velocile…
Clustering analysis of medium-band selected high-redshift galaxies
H. Ebina, M. White, A. Raichoor +57
Next-generation large-scale structure spectroscopic surveys will probe cosmology at high redshifts , relying on abundant galaxy tracers such as Ly emitters (LA…
A comparison of effective field theory models of redshift space galaxy power spectra for DESI 2024 and future surveys
M. Maus, Y. Lai, H. E. Noriega +54
In preparation for the next generation of galaxy redshift surveys, and in particular the year-one data release from the Dark Energy Spectroscopic Instrument (DESI), we investigate…
Constraining GREA, an alternative theory accounting for the present cosmic acceleration
R. Calderon, J. Garcia-Bellido, B. Vos-Gines +34
The origin of the Universe's late-time accelerated expansion remains unknown. The General Relativistic Entropic Acceleration (GREA) theory offers a compelling alternative to CD…
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 Spectros…
A Sound Horizon-Free Measurement of in DESI 2024
E. A. Zaborowski, P. Taylor, K. Honscheid +53
The physical size of the sound horizon at recombination is a powerful source of information for early-time measurements of the Hubble constant , and many proposed solutions to…
DESI DR2 Baryon Acoustic Oscillations from the Lyman Alpha Forest Multipoles
N. G. Karaçaylı, A. Cuceu, J. Aguilar +55
We present an alternative measurement of the Baryon Acoustic Oscillation (BAO) using the Legendre multipole representation of the Ly forest correlation functions from the secon…
Parity-odd Four-Point Correlation Function from DESI Data Release 1 Luminous Red Galaxy Sample
J. Hou, R. N. Cahn, J. Aguilar +33
The parity-odd four-point function provides a unique probe of fundamental symmetries and potential new physics in the large-scale structure of the Universe. We present measurements…
DESI EDR: Calibrating the Tully-Fisher Relationship with the DESI Peculiar Velocity Survey
K. Douglass, S. BenZvi, N. Uberoi +45
We calibrate the Tully-Fisher relation (TFR) with data from the DESI Peculiar Velocity (PV) Survey taken during the Survey Validation (SV) period of the DESI galaxy redshift survey…
Evaluating bulk flow estimators for CosmicFlows-4 measurements
A. M. Whitford, C. Howlett, T. M. Davis
For over a decade there have been contradictory claims in the literature about whether the local bulk flow motion of galaxies is consistent or in tension with the CDM model. Wh…
Validation of the DESI DR2 Measurements of Baryon Acoustic Oscillations from Galaxies and Quasars
U. Andrade, E. Paillas, J. Mena-Fernández +116
The Dark Energy Spectroscopic Instrument (DESI) data release 2 (DR2) galaxy and quasar clustering data represents a significant expansion of data from DR1, providing improved stati…
Testing Gravity Using Type Ia Supernovae Discovered by Next-Generation Wide-Field Imaging Surveys
A. G. Kim, G. Aldering, P. Antilogus +29
In the upcoming decade cadenced wide-field imaging surveys will increase the number of identified Type~Ia supernovae (SNe~Ia) from the hundreds to the hundreds of thousands…
Cosmological neutrino mass: a frequentist overview in light of DESI
D. Chebat, C. Yèche, E. Armengaud +51
We derive constraints on the neutrino mass using a variety of recent cosmological datasets, including DESI BAO, the full-shape analysis of the DESI matter power spectrum and the on…
WALLABY Pilot Survey: Public release of HI kinematic models for more than 100 galaxies from phase 1 of ASKAP pilot observations
N. Deg, K. Spekkens, T. Westmeier +29
We present the Widefield ASKAP L-band Legacy All-sky Blind surveY (WALLABY) Pilot Phase I HI kinematic models. This first data release consists of HI observations of three fields i…
First Detection of the Baryon Acoustic Oscillation (BAO) Feature in the 3-Point Correlation Function of DESI DR1 Luminous Red Galaxies
Farshad Kamalinejad, Zachary Slepian, Alex Krolewski +55
We present the first detection of the 3-Point Correlation Function (3PCF) Baryon Acoustic Oscillation (BAO) signal from the DESI Data Release 1 (DR1) sample of Luminous Red Galaxie…
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…
Clustering redshift distribution calibration of weak lensing surveys using the DESI-DR1 spectroscopic dataset
R. Ruggeri, C. Blake, J. Aguilar +63
We estimate the source redshift distribution of current weak lensing surveys by applying the clustering-based redshift calibration technique, using the galaxy redshift sample provi…
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…
Validating the Galaxy and Quasar Catalog-Level Blinding Scheme for the DESI 2024 analysis
U. Andrade, J. Mena-Fernández, H. Awan +60
In the era of precision cosmology, ensuring the integrity of data analysis through blinding techniques is paramount -- a challenge particularly relevant for the Dark Energy Spectro…
Probing the environment around GW170817 with DESI: insights on galaxy group peculiar velocities for standard siren measurements
A. J. Amsellem, A. Palmese, K. Douglass +56
We present a new measurement of the Hubble constant, , following the gravitational wave event GW170817 and Dark Energy Spectroscopic Instrument (DESI) observations. A standard…
DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints
DESI Collaboration, M. Abdul-Karim, J. Aguilar +184
We present baryon acoustic oscillation (BAO) measurements from more than 14 million galaxies and quasars drawn from the Dark Energy Spectroscopic Instrument (DESI) Data Release 2 (…
Galaxy And Mass Assembly (GAMA): end of survey report and data release 2
J. Liske, I. K. Baldry, S. P. Driver +67
The Galaxy And Mass Assembly (GAMA) survey is one of the largest contemporary spectroscopic surveys of low-redshift galaxies. Covering an area of ~286 deg^2 (split among five surve…
Window convolution of the galaxy clustering bispectrum
Mike Shengbo Wang, Florian Beutler, J. Aguilar +25
In galaxy survey analysis, the observed clustering statistics do not directly match theoretical predictions but rather have been processed by a window function that arises from the…
FolpsD: combining EFT and phenomenological approaches for joint power spectrum and bispectrum analyses
P. Bansal, A. Aviles, H. E. Noriega +56
We present a theoretical model for the power spectrum and bispectrum of galaxy clustering that exploits the complementarity between small-scale power spectrum information and large…
Validation of the DESI 2024 Ly forest BAO analysis using synthetic datasets
Andrei Cuceu, Hiram K. Herrera-Alcantar, Calum Gordon +56
The first year of data from the Dark Energy Spectroscopic Instrument (DESI) contains the largest set of Lyman- (Ly) forest spectra ever observed. This data, collected in th…
The Linear Point Standard Ruler with DESI DR1 and DR2 Data
N. Uberoi, F. Nikakhtar, N. Padmanabhan +45
The linear point, a purely geometric feature in the monopole of the two-point correlation function, has been proposed as an alternative standard ruler. Compared to the peak in the…
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…
The DESI DR1 Peculiar Velocity Survey: Mock Catalog
J. Bautista, A. J. Amsellem, V. Aronica +59
We describe the production of the official set of mock catalogs for the Dark Energy Spectroscopic Instrument Peculiar Velocity Survey (DESI-PV) Data Release 1 (DR1). Our mock catal…
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…
DESI 2024: Constraints on Physics-Focused Aspects of Dark Energy using DESI DR1 BAO Data
K. Lodha, A. Shafieloo, R. Calderon +47
Baryon acoustic oscillation data from the first year of the Dark Energy Spectroscopic Instrument (DESI) provide near percent-level precision of cosmic distances in seven bins over…
Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
B. Abareshi, J. Aguilar, S. Ahlen +264
The Dark Energy Spectroscopic Instrument (DESI) has embarked on an ambitious five-year survey to explore the nature of dark energy with spectroscopy of 40 million galaxies and quas…
STag II: Classification of Serendipitous Supernovae Observed by Galaxy Redshift Surveys
W. Davison, D. Parkinson, S. BenZvi +32
With the number of supernovae observed expected to drastically increase thanks to large-scale surveys like the Dark Energy Spectroscopic Instrument (DESI), it is necessary that the…
DESI-DR1 -pt analysis: consistent cosmology across weak lensing surveys
A. Porredon, C. Blake, J. U. Lange +70
We present a joint cosmological analysis of projected galaxy clustering observations from the Dark Energy Spectroscopic Instrument Data Release 1 (DESI-DR1), and overlapping weak g…
Testing gravitational physics by combining DESI DR1 and weak lensing datasets using the E_G estimator
S. J. Rauhut, C. Blake, U. Andrade +61
The action of gravitational physics across space-time creates observable signatures in the behaviour of light and matter. We perform combined-probe studies using data from the Bary…
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 ha…
Mitigating Imaging Systematics for DESI 2024 Emission Line Galaxies and Beyond
A. J. Rosado-MarÃn, A. J. Ross, H. Seo +56
Emission Line Galaxies (ELGs) are one of the main tracers that the Dark Energy Spectroscopic Instrument (DESI) uses to probe the universe. However, they are afflicted by strong spu…
Joint cosmological fits to DESI-DR1 full-shape clustering and weak gravitational lensing in configuration space
A. Semenaite, C. Blake, A. Porredon +69
We present a joint -pt cosmological analysis of auto- and cross-correlations between the Dark Energy Spectroscopic Instrument Data Release 1 (DESI-DR1) Bright Galaxy Surv…
HOD-Dependent Systematics for Luminous Red Galaxies in the DESI 2024 BAO Analysis
J. Mena-Fernández, C. Garcia-Quintero, S. Yuan +72
In this paper, we present the estimation of systematics related to the halo occupation distribution (HOD) modeling in the baryon acoustic oscillations (BAO) distance measurement of…
Constraints on primordial non-Gaussianity from the cross-correlation of DESI Luminous Red Galaxies and CMB lensing
J. R. Bermejo-Climent, R. Demina, A. Krolewski +47
We use the angular cross-correlation between a luminous red galaxy (LRG) sample from the Dark Energy Spectroscopic Instrument (DESI) Legacy Survey data release DR9 and the …
Data Release 1 of the Dark Energy Spectroscopic Instrument
DESI Collaboration, M. Abdul Karim, A. G. Adame +306
In 2021 May the Dark Energy Spectroscopic Instrument (DESI) collaboration began a 5-year spectroscopic redshift survey to produce a detailed map of the evolving three-dimensional s…
Value Added Catalog of physical properties of more than 1.3 million galaxies from the DESI Survey
M. Siudek, R. Pucha, M. Mezcua +50
Aims. We present an extensive catalog of the physical properties of more than a million galaxies within the Dark Energy Spectroscopic Instrument (DESI), one of the largest spectros…
Full Modeling and Parameter Compression Methods in configuration space for DESI 2024 and beyond
S. Ramirez-Solano, M. Icaza-Lizaola, H. E. Noriega +49
In the contemporary era of high-precision spectroscopic surveys, led by projects like DESI, there is an increasing demand for optimizing the extraction of cosmological information…
The Construction of Large-scale Structure Catalogs for the Dark Energy Spectroscopic Instrument
A. J. Ross, J. Aguilar, S. Ahlen +83
We present the technical details on how large-scale structure (LSS) catalogs are constructed from redshifts measured from spectra observed by the Dark Energy Spectroscopic Instrume…