1.4k citations · 5.6k across the 42 of their papers we have counts for
48 papers
Cosmological inference from a joint DESI DR1 full-shape power spectrum and bispectrum analysis
Caroline Guandalin, Prakhar Bansal, Pedro Carrilho +11
The galaxy bispectrum directly probes the non-linear gravitational evolution of large-scale structure (LSS) and can break parameter degeneracies that remain in power-spectrum analy…
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…
An analytic approximation to the covariance between pre- and post-reconstruction galaxy two-point statistics
M. Maus, A. Baleato Lizancos, M. White +2
We present a simple analytic approximation for the covariance between pre-reconstruction galaxy power spectrum measurements and post-reconstruction two-point correlation functions.…
Fiducial-Cosmology-dependent systematics for the DESI 2024 Full-Shape Analysis
R. Gsponer, S. Ramirez-Solano, F. Rodríguez-Martínez +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…
Frequentist Cosmological Constraints from Full-Shape Clustering Measurements in DESI DR1
James Morawetz, Hanyu Zhang, Marco Bonici +53
We present a frequentist analysis of clustering measurements from Data Release 1 of the Dark Energy Spectroscopic Instrument (DESI) using the standard profile likelihood method. Wh…
Benchmarking field-level cosmological inference from galaxy redshift surveys
Hugo Simon, François Lanusse, Arnaud de Mattia
Field-level inference has emerged as a promising framework to fully harness the cosmological information encoded in next-generation galaxy surveys. It involves performing Bayesian…
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…
Fiducial-Cosmology-dependent systematics for the DESI 2024 BAO Analysis
A. Pérez-Fernández, L. Medina-Varela, R. Ruggeri +61
When measuring the Baryon Acoustic Oscillations (BAO) scale from galaxy surveys, one typically assumes a fiducial cosmology when converting redshift measurements into comoving dist…
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,…
Blinding scheme for the scale-dependence bias signature of local primordial non-Gaussianity for DESI 2024
E. Chaussidon, A. de Mattia, C. Yèche +32
The next generation of spectroscopic surveys is expected to achieve an unprecedented level of accuracy in the measurement of cosmological parameters. To avoid confirmation bias and…
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…
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…
Forward modeling fluctuations in the DESI LRGs target sample using image simulations
Hui Kong, Ashley J. Ross, Klaus Honscheid +50
We use the forward modeling pipeline, Obiwan, to study the imaging systematics of the Luminous Red Galaxies (LRGs) targeted by the Dark Energy Spectroscopic Instrument (DESI). We u…
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…
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…
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…
HOD-Dependent Systematics in Emission Line Galaxies for the DESI 2024 BAO analysis
C. Garcia-Quintero, J. Mena-Fernández, A. Rocher +73
The Dark Energy Spectroscopic Instrument (DESI) will provide precise measurements of Baryon Acoustic Oscillations (BAO) to constrain the expansion history of the Universe and set s…
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…
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…
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…
Comparing Compressed and Full-modeling Analyses with FOLPS: Implications for DESI 2024 and beyond
H. E. Noriega, A. Aviles, H. Gil-Marín +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…
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…
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…
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…