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"Dynamics of galaxies as probes to constrain gravity models" In this thesis, we test cosmological and gravitational models (ΛCDM and MOND) using idealized galaxy simulations. Ultra-diffuse galaxies (UDGs) in the Coma cluster exhibit higher velocity dispersions than MOND predicts. Our MOND...
"Vz-GAL: Probing Cold Molecular Gas in Dusty Star-forming Galaxies at z=1-6." Reconstructing the physical mechanisms that have shaped present-day galaxies remains a primary goal in observational cosmology. I will introduce the Vz-GAL VLA CO(1–0) Survey, a comprehensive endeavor targeting...
"Formation of Fornax dwarf spheroidal and the survival of its globular clusters " The presence of globular clusters (GCs) in the Fornax dwarf spheroidal is an important test of the theories aiming to address the missing mass problem. The problem is that in most of them, the GCs are expected to...
"NOEMA3D: Inflowing Gas at Subgalactic Scales in Massive Star Forming Galaxies at z~1-2" How is gas transported within galaxies at cosmic noon? What is the role of bars and spiral arms in the build-up of galactic structures? To try to answer these questions I will present NOEMA3D, an ongoing...
"Confronting the Cosmological Principle: How secure are the foundations of the cosmos?" I will present our recent work using quasars and radio galaxies to test the cosmological principle—the foundation of modern cosmology. While this principle states the universe is isotropic and homogeneous,...
"Do the stellar streams of the Milky Way point to a past Milky Way-Andromeda interaction?"Stellar streams around the Milky Way (MW) can provide valuable insights into its history and substructure formation. Previous studies suggested that several MW streams could have a correlated origin with the...
"From UDGs to UCDs via dE,Ns; evidence of star cluster migration and merger in dwarf galaxies" As the most numerous galaxies in the Universe, with an expected number depending on the cosmology, dwarf galaxies attract a lot of attention. However, outside the local group and galaxy clusters,...
"Reevaluating the cosmological redshift: insights into inhomogeneities and irreversible processes" Understanding the expansion of the Universe remains a profound challenge in fundamental physics. The complexity of solving General Relativity equations in the presence of intricate, inhomogeneous...
"The many facets of interaction-induced star-formation in galaxies" What is the spectrum of possible outcomes when galaxies merge? How often, and on which time scales, can this lead to accelerated vs. slowing growth?A key step towards understanding different evolutionary pathways is to quantify...
"Dynamics of the Spiral Arms as Seen by Gaia DR3 and Simulations" Although it is widely accepted that we live in a spiral galaxy, the location, population, and even the number of spiral arms remain controversial. These uncertainties arise from our position within the Milky Way disc, which...