924 citations · 2.2k across the 37 of their papers we have counts for
23 papers · 1 filter
The DESI One-Percent Survey: Exploring the Halo Occupation Distribution of Luminous Red Galaxies and Quasi-Stellar Objects with AbacusSummit
Sihan Yuan, Hanyu Zhang, Ashley J. Ross +39
We present the first comprehensive Halo Occupation Distribution (HOD) analysis of the DESI One-Percent survey Luminous Red Galaxy (LRG) and Quasi-Stellar Object (QSO) samples. We c…
The DESI One-Percent Survey: Modelling the clustering and halo occupation of all four DESI tracers with Uchuu
F. Prada, J. Ereza, A. Smith +44
We present results from a set of mock lightcones for the DESI One-Percent Survey, created from the Uchuu simulation. This This 8 (Gpc/h)^3 N-body simulation comprises 2.1 trillion…
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…
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…
The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Pairwise-Inverse-Probability and Angular Correction for Fibre Collisions in Clustering Measurements
Faizan G. Mohammad, Will J. Percival, Hee-Jong Seo +28
The completed eBOSS catalogues contain redshifts of 344080 QSOs over 0.8<z<2.2 covering 4808 deg, 174816 LRGs over 0.6<z<1.0 covering 4242 deg and 173736 ELGs over 0.6<z<1.…
The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: exploring the Halo Occupation Distribution model for Emission Line Galaxies
Santiago Avila, Violeta Gonzalez-Perez, Faizan G. Mohammad +25
We study the modelling of the Halo Occupation Distribution (HOD) for the eBOSS DR16 Emission Line Galaxies (ELGs). Motivated by previous theoretical and observational studies, we c…
Confronting missing observations with probability weights: Fourier space and generalised formalism
Davide Bianchi, Licia Verde
Due to instrumental limitations, the nature of which vary from case to case, spectroscopic galaxy redshift surveys usually do not collect redshifts for all galaxies in the populati…
Cosmological Inference from Galaxy-Clustering Power Spectrum: Gaussianization and Covariance Decomposition
Mike Shengbo Wang, Will J. Percival, Santiago Avila +2
Likelihood fitting to two-point clustering statistics made from galaxy surveys usually assumes a multivariate normal distribution for the measurements, with justification based on…
Correcting for Fibre Assignment Incompleteness in the DESI Bright Galaxy Survey
Alex Smith, Jian-hua He, Shaun Cole +11
The Dark Energy Spectroscopic Instrument (DESI) Bright Galaxy Survey (BGS) will be a survey of bright, low redshift galaxies, which is planned to cover an area of ~14,000 sq deg in…
Unbiased clustering estimates with the DESI fibre assignment
Davide Bianchi, Angela Burden, Will J. Percival +6
The Emission Line Galaxy survey made by the Dark Energy Spectroscopic Instrument (DESI) survey will be created from five passes of the instrument on the sky. On each pass, the cons…
Measuring the Universe with galaxy redshift surveys
L. Guzzo, J. Bel, D. Bianchi +7
Galaxy redshift surveys are one of the pillars of the current standard cosmological model and remain a key tool in the experimental effort to understand the origin of cosmic accele…
Using angular pair upweighting to improve 3D clustering measurements
Will J. Percival, Davide Bianchi
Three dimensional galaxy clustering measurements provide a wealth of cosmological information. However, obtaining spectra of galaxies is expensive, and surveys often only measure r…
Unbiased clustering estimation in the presence of missing observations
Davide Bianchi, Will J. Percival
In order to be efficient, spectroscopic galaxy redshift surveys do not obtain redshifts for all galaxies in the population targeted. The missing galaxies are often clustered, commo…
Improving the modelling of redshift-space distortions - II. A pairwise velocity model covering large and small scales
Davide Bianchi, Will J. Percival, Julien Bel
We develop a model for the redshift-space correlation function, valid for both dark matter particles and halos on scales Mpc. In its simplest formulation, the model req…
Semi-analytic galaxy formation in coupled dark energy cosmologies
Fabio Fontanot, Marco Baldi, Volker Springel +1
Among the possible alternatives to the standard cosmological model (CDM), coupled Dark Energy models postulate that Dark Energy (DE), seen as a dynamical scalar field, may inter…
Measuring line-of-sight dependent Fourier-space clustering using FFTs
Davide Bianchi, Héctor Gil-Marín, Rossana Ruggeri +1
Observed galaxy clustering exhibits local transverse statistical isotropy around the line-of-sight (LOS). The variation of the LOS across a galaxy survey complicates the measuremen…
Group-galaxy correlations in redshift space as a probe of the growth of structure
Faizan G. Mohammad, Sylvain de la Torre, Davide Bianchi +2
We investigate the use of the cross-correlation between galaxies and galaxy groups to measure redshift-space distortions (RSD) and thus probe the growth rate of cosmological struct…
Semi-Analytic Galaxy Formation in Massive Neutrino Cosmologies
Fabio Fontanot, Francisco Villaescusa-Navarro, Davide Bianchi +1
The constraints on neutrino masses led to the revision of their cosmological role, since the existence of a cosmological neutrino background is a clear prediction of the standard c…
Improving the modelling of redshift-space distortions: I. A bivariate Gaussian description for the galaxy pairwise velocity distributions
Davide Bianchi, Matteo Chiesa, Luigi Guzzo
As a step towards a more accurate modelling of redshift-space distortions in galaxy surveys, we develop a general description of the probability distribution function of galaxy pai…
Semi-analytic galaxy formation in f(R)-gravity cosmologies
Fabio Fontanot, Ewald Puchwein, Volker Springel +1
Modifications of the equations of general relativity at large distances offer one possibility to explain the observed properties of our Universe without invoking a cosmological con…
Statistical and systematic errors in redshift-space distortion measurements from large surveys
Davide Bianchi, Luigi Guzzo, Enzo Branchini +5
We investigate the impact of statistical and systematic errors on measurements of linear redshift-space distortions (RSD) in future cosmological surveys, analyzing large catalogues…
Cosmology with clustering anisotropies: disentangling dynamic and geometric distortions in galaxy redshift surveys
Federico Marulli, Davide Bianchi, Enzo Branchini +3
We investigate the impact of different observational effects affecting a precise and accurate measurement of the growth rate of fluctuations from the anisotropy of clustering in ga…
Euclid Definition Study Report
R. Laureijs, J. Amiaux, S. Arduini +216
Euclid is a space-based survey mission from the European Space Agency designed to understand the origin of the Universe's accelerating expansion. It will use cosmological probes to…