Published:
This article analyze the dark matter (dm) halo evolution through time. For this study we use a Milky Way like haloes subsample from CIELO (ChemodynamIcal propertiEs of gaLaxies and the cOsmic web) project. This project aims at studying the formation of galaxies in different environments using zoom-ins simulations.
Recommended citation: Cataldi et. al. (2023b) https://ui.adsabs.harvard.edu/abs/2023BAAA...64..178C/abstract
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This work studies the compactness of galaxies in the early Universe during the epoch of reionization. Using cosmological simulations, we explore galaxy compaction as a possible formation channel for extremely compact systems such as the recently observed little red dots.
Recommended citation: Cataldi et. al. (2024) https://ganegroup.github.io/workshop/Workshop_on_Massive_stars
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We develop methods to classify X-ray binaries using only X-ray observational data. The study explores how different X-ray properties can be used to distinguish binary populations in nearby galaxies.
Recommended citation: Badaracco et. al. (2024) https://ui.adsabs.harvard.edu/abs/2025BAAA...66..401B/abstract
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This work studies the populations of X-ray binaries in local galaxies.
Recommended citation: Pellizza et. al. (2024) https://ui.adsabs.harvard.edu/abs/2025BAAA...66..377P/abstract
Published in A&A, 2019
In this article, we study the properties of four Milky Way mass dark matter haloes from the Aquarius project during their assembly history, between z = 0−4.
Recommended citation: Artale, et. al. (2019) http://dx.doi.org/10.1051/0004-6361/201834096
Published in MNRAS, 2020
In this work we aim at investigating the effects of baryons on the dark matter haloes structure, focusing on the correlation between the presence and importance of stellar discs and the halo shapes. We study the properties of a subsample of DM haloes from Fenix and eagle cosmological simulations.
Recommended citation: Cataldi, et. al. (2020) http://dx.doi.org/10.1093/mnras/staa3988
Published in MNRAS, 2022
In this work, we search for detectable signatures of f(R) gravity and its chameleon screening mechanism in the baryonic and dark matter properties of simulated void galaxies. The enhancement of the gravitational acceleration can have a meaningful impact on the scaling relations as well as on the halo morphology. The galaxy rotational velocity field (calculated with the velocity of the gas disc and the acceleration fields) deviates from the typical values of the Tully-Fisher Relation (TFR) in GR
Recommended citation: Cataldi, et. al. (2022) https://doi.org/10.1093/mnras/stac2122
Published in MNRAS, 2023
In this work, we aim at investigating the morphology evolution of Milky Way mass-like dark matter haloes selected from the CIELO and IllustrisTNG Projects. The connection between halo shapes and their environment has been studied in previous works at z=0 but their connection remains yet to be fully understood. We focus on the evolution across cosmic time of the halo shapes and the relation with the infalling material, using hydrodynamical simulations
Recommended citation: Cataldi, et. al. (2023) https://doi.org/10.1093/mnras/stad1601
Published in A&A, 2025
The CIELO project introduces a novel set of chemo-dynamical zoom-in simulations, designed to simultaneously resolve galaxies and their nearby environments.
Recommended citation: Tissera, et. al. (2025) https://www.aanda.org/articles/aa/full_html/2025/05/aa53348-24/aa53348-24.html
Published in MNRAS, 2025
The Gamma growth model, characterised by simple parameters, successfully reproduces the evolution of the Galaxy Stellar Mass Function over 13.5 Gyr, with minor deviations at z > 1.5. This suggests that the GSMF’s evolution follows a physically motivated, few-parameter framework consistent with JWST observations.
Recommended citation: Katsianis et. al. (2025) https://academic.oup.com/mnras/article/540/1/688/8131524
Published in A&A, 2025
JWST has revealed ultra-compact, massive galaxies at z ≳ 6, challenging current models. Using FirstLight simulations, we find a universal wet compaction phase—an expansion–compaction–re-expansion cycle driven by central baryon domination—that naturally explains the observed inverted size–mass relation at Cosmic Dawn.
Recommended citation: Cataldi et. al. (2026) https://www.aanda.org/articles/aa/full_html/2026/02/aa56078-25/aa56078-25.html
Published in Submitted to A&A, 2026
Upcoming surveys such as the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will measure galaxy clustering with unprecedented precision. In this project, I develop and test new methods to estimate the halo occupation distribution (HOD)—a key tool that links galaxies to their host dark matter haloes. Using realistic mock catalogues based on the cosmoDC2 simulation, I extend background subtraction techniques to work with photometric data and implement a galaxy group–finding algorithm. This work prepares robust tools to study galaxy clustering and galaxy–halo connections with future LSST observations.
Recommended citation: Cataldi et. al. (2026) http://arxiv.org/abs/2603.01978
Published:
Undergraduate course, . Department of Physics, Buenos Aires University, Faculty of Exact and Natural Sciences, 2017
Analysis II (multivariable calculus), curse 8
Undergraduate course, Department of Mathematics, Buenos Aires University, Faculty of Engineering, 2021
Analysis II (multivariable calculus), curse 8
Undergraduate course, Department of Mathematics, Buenos Aires University, Faculty of Engineering, 2022
Analysis II (multivariable calculus), curse 9
Undergraduate course, Department of Physics, Buenos Aires University, Faculty of Exact and Natural Sciences, 2024
Assistant teaching in Classical Mechanics
Undergraduate course, Department of Physics, Buenos Aires University, Faculty of Exact and Natural Sciences, 2024
Assistant teaching in Cosmology