6 papers
Euclid. Populating a dark universe with galaxies using SciPIC
Euclid Collaboration, E. J. Gonzalez, J. Carretero +305
High-fidelity galaxy mocks are crucial for validating analysis pipelines and for cosmological inference. In this context, the Science Pipeline at PIC (SciPIC) is a pipeline specifi…
Euclid preparation. Simulated galaxy catalogues for non-standard cosmological models
Euclid Collaboration, M. -A. Breton, P. Fosalba +289
Stage-IV galaxy surveys will provide the opportunity to test cosmological models and the underlying theory of gravity with unparalleled precision. In this context, it is crucial fo…
Unclustered tracers remain unclustered: the lack of primordial non-Gaussianity response of bias-zero tracers
Celia Merino, Santiago Avila, A. G. Adame +3
Constraining primordial non-Gaussianities (PNG) is one of the main goals of new-generation large-scale galaxy surveys. It had been proposed that unclustered tracers (with bias $b_1…
Galaxy Phase-Space and Field-Level Cosmology: The Strength of Semi-Analytic Models
Natalà S. M. de Santi, Natalí S. M. de Santi, Francisco Villaescusa-Navarro +11
Semi-analytic models are a widely used approach to simulate galaxy properties within a cosmological framework, relying on simplified yet physically motivated prescriptions. They ha…
Accurate -body simulations with local Primordial non-Gaussianities: initial conditions and aliasing
Adrian G. Adame, Santiago Avila, Violeta Gonzalez-Perez +3
New generation galaxy surveys targeting constraints on local primordial non-Gaussianity (PNG) demand -body simulations that accurately reproduce its effects. In this work, we ex…
The multi-dimensional halo assembly bias can be preserved when enhancing halo properties with HALOSCOPE
Sujatha Ramakrishnan, Violeta Gonzalez-Perez, Gabriele Parimbelli +1
Over \% of dark matter haloes in cosmological simulations have unresolved properties. This can hinder the dynamical range of simulations and result in systematic biases when mo…