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astro-ph.CO2026
Aletheia: Emulating the halo mass function with evolution mapping
Andrea Fiorilli, Ariel G. Sánchez, Andrés N. Ruiz +1
We present an emulator of the halo mass function (HMF) based on Gaussian-process regression, that exploits the evolution mapping framework. This framework splits cosmological param…
astro-ph.CO2026
Improved recipes for peculiar velocity power spectra using Evolution Mapping
Matteo Esposito, Ariel G. Sánchez, Julien Bel +1
We present new fitting functions for the velocity divergence auto- and cross-power spectra, and , calibrated on gravity-only -body simulations. By applyin…
astro-ph.CO2026
CNN+FoF: application of deep learning to the identification of dark matter haloes
Soumadeep Maiti, Carlos M. Correa, Andrea Fiorilli +4
We present a deep-learning-based approach for identifying dark matter haloes in cosmological N-body simulations. Our framework consists of a volumetric Convolutional Neural Network…