680 citations · 8k across the 134 of their papers we have counts for
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Euclid preparation. The shape of halo profiles in CDM and non-standard cosmologies
Euclid Collaboration, L. Pizzuti, G. Y. Ferron +304
We study the shape of three-dimensional and projected dark-matter halo profiles extracted from cosmological -body simulations in CDM and non-standard cosmologies, using the \…
Galaxy bias in the era of LSST: perturbative bias expansions
Andrina Nicola, Boryana Hadzhiyska, Nathan Findlay +14
Upcoming imaging surveys will allow for high signal-to-noise measurements of galaxy clustering at small scales. In this work, we present the results of the LSST bias challenge, the…
HYMALAIA: A Hybrid Lagrangian Model for Intrinsic Alignments
Francisco Maion, Raul E. Angulo, Thomas Bakx +3
The intrinsic alignment of galaxies is an important ingredient for modelling weak-lensing measurements, and a potentially valuable cosmological and astrophysical signal. In this pa…
Hybrid-bias and displacement emulators for field-level modelling of galaxy clustering in real and redshift space
Marcos Pellejero Ibanez, Raul E. Angulo, Drew Jamieson +1
Recently, hybrid bias expansions have emerged as a powerful approach to modelling the way in which galaxies are distributed in the Universe. Similarly, field-level emulators have r…
Consistent clustering and lensing of SDSS-III BOSS galaxies with an extended abundance matching formalism
Sergio Contreras, Jonás Chaves-Montero, Raul E. Angulo
Several analyses have shown that LCDM-based models cannot jointly describe the clustering (GC) and galaxy-galaxy lensing (GGL) of galaxies in the SDSS-III BOSS survey, which is com…
DES Y3 cosmic shear down to small scales: constraints on cosmology and baryons
Giovanni Aricò, Raul E. Angulo, Matteo Zennaro +3
We present the first analysis of cosmic shear measured in DES Y3 that employs the entire range of angular scales in the data. To achieve this, we build upon recent advances in the…
The effect of stellar encounters on the dark matter annihilation signal from prompt cusps
Jens Stücker, Go Ogiya, Simon D. M. White +1
Prompt cusps are the densest quasi-equilibrium dark matter objects; one forms at the instant of collapse within every isolated peak of the initial cosmological density field. They…
Euclid: Modelling massive neutrinos in cosmology -- a code comparison
J. Adamek, R. E. Angulo, C. Arnold +133
The measurement of the absolute neutrino mass scale from cosmological large-scale clustering data is one of the key science goals of the Euclid mission. Such a measurement relies o…
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching
Sergio Contreras, Raul E. Angulo, Jonás Chaves-Montero +2
The spatial distribution of galaxies and their gravitational lensing signal offer complementary tests of galaxy formation physics and cosmology. However, their synergy can only be…
The galaxy formation origin of the lensing is low problem
Jonas Chaves-Montero, Raul E. Angulo, Sergio Contreras
Recent analyses show that CDM-based models optimised to reproduce the clustering of massive galaxies overestimate their gravitational lensing by about 30\%, the so-called lensin…
Suppressing variance in 21-cm signal simulations during reionization
Sambit K. Giri, Aurel Schneider, Francisco Maion +1
Current best limits on the 21-cm signal during reionization are provided at large scales (100 Mpc). To model these scales, enormous simulation volumes are required which a…
Euclid preparation. XXIV. Calibration of the halo mass function in CDM cosmologies
Euclid Collaboration, T. Castro, A. Fumagalli +179
Euclid's photometric galaxy cluster survey has the potential to be a very competitive cosmological probe. The main cosmological probe with observations of clusters is their number…
The cosmology dependence of the concentration-mass-redshift relation
Daniel López-Cano, Raúl E. Angulo, Aaron D. Ludlow +4
The concentrations of dark matter haloes provide crucial information about their internal structure and how it depends on mass and redshift -- the so-called concentration-mass-reds…
The Bacco Simulation Project: Bacco Hybrid Lagrangian Bias Expansion Model in Redshift Space
Marcos Pellejero-Ibanez, Raul E. Angulo, Matteo Zennaro +4
We present an emulator that accurately predicts the power spectrum of galaxies in redshift space as a function of cosmological parameters. Our emulator is based on a 2nd-order Lagr…
Tidal Stripping in the Adiabatic Limit
Jens Stücker, Go Ogiya, Raul E. Angulo +2
We present a model for the remnants of haloes that have gone through an adiabatic tidal stripping process. We show that this model exactly reproduces the remnant of an NFW halo tha…
Constraining the Baryonic Feedback with Cosmic Shear Using the DES Year-3 Small-Scale Measurements
A. Chen, G. Aricò, D. Huterer +139
We use the small scales of the Dark Energy Survey (DES) Year-3 cosmic shear measurements, which are excluded from the DES Year-3 cosmological analysis, to constrain the baryonic fe…
Statistics of biased tracers in variance-suppressed simulations
Francisco Maion, Raul E. Angulo, Matteo Zennaro
Cosmological simulations play an increasingly important role in analysing the observed large-scale structure of the Universe. Recently, they have been particularly important in bui…
Large-scale dark matter simulations
Raul E. Angulo, Oliver Hahn
We review the field of collisionless numerical simulations for the large-scale structure of the Universe. We start by providing the main set of equations solved by these simulation…
Simulating the complexity of the dark matter sheet II: halo and subhalo mass functions for non-cold dark matter models
Jens Stücker, Raul E. Angulo, Oliver Hahn +1
We present "sheet+release" simulations that reliably follow the evolution of dark matter structure at and below the dark matter free-streaming scale, where instabilities in traditi…
Priors on Lagrangian bias parameters from galaxy formation modelling
Matteo Zennaro, Raul E. Angulo, Sergio Contreras +2
We study the relations among the parameters of the hybrid Lagrangian bias expansion model, fitting biased auto and cross power spectra up to $k_{\rm max} = 0.7 \, h \, \mathrm{Mpc}…
Modelling galaxy clustering in redshift space with a Lagrangian bias formalism and -body simulations
Marcos Pellejero-Ibanez, Jens Stuecker, Raul E. Angulo +3
Improving the theoretical description of galaxy clustering on small scales is an important challenge in cosmology, as it can considerably increase the scientific return of forthcom…
The Boosted Potential
Jens Stücker, Raul E. Angulo, Philipp Busch
The global gravitational potential, , is not commonly employed in the analysis of cosmological simulations, since its level sets do not show any clear correspondence to the unde…
Redshift-space effects in voids and their impact on cosmological tests. Part II: the void-galaxy cross-correlation function
Carlos M. Correa, Dante J. Paz, Nelson D. Padilla +3
This is the second part of a thorough investigation of the redshift-space effects that affect void properties and the impact they have on cosmological tests. Here, we focus on the…
Accelerating Large-Scale-Structure data analyses by emulating Boltzmann solvers and Lagrangian Perturbation Theory
Giovanni Aricò, Raul E. Angulo, Matteo Zennaro
The linear matter power spectrum is an essential ingredient in all theoretical models for interpreting large-scale-structure observables. Although Boltzmann codes such as CLASS or…