Globular clusters (GCs) are the most ancient objects in the Milky Way. Therefore, they play a key role in the understanding of the dynamical and chemical evolution of the Galaxy. Combining photometric, astrometric, and spectroscopic information from Gaia and APOGEE data, we can have the full phase-space vector and chemical information for the known Milky […]

Stellar occultations provide a powerful tool to explore objects of the outer solar system. Occultations return kilometric accuracies on the three-dimensional shape of bodies irrespective of their geocentric distances, with the potential of detecting topographic features along the limb. From the shape, accurate values of albedo can be derived, and if the mass is known, […]

Supernova remnants (SNRs) are the aftermath of supernova explosions, resulting from the interaction of the stellar ejecta with the medium that surrounds the explosion center. In most cases, the ambient medium properties deviate substantially from homogeneity and differ dramatically from the local interstellar medium properties, due to the mass outflows of the stellar progenitor system […]

Given the challenge of accurately modeling the data likelihood, there has been growing interest and effort in exploring machine learning tools for simulation-based inference (SBI). This approach is particularly valuable in the context of high-order statistics, which often lack an analytical expression or a known closed-form theoretical model. I will discuss how SBI can serve […]

In this talk, I will discuss a method to disentangle the star formation, chemical enrichment, and assembly histories of galaxies from integrated light spectroscopy. I will demonstrate how this can be used to infer the mass of stars that formed in-situ in a galaxy, as well as the mass that was acquired during mergers (ex-situ […]

Estrelas de bário e gigantes ricas em lítio são duas classes relativamente raras de estrelas quimicamente peculiares (~1%). Enquanto está bem estabelecido na literatura que as estrelas de bário se formam em sistemas binários, nos quais uma das componentes evoluiu até a fase de AGB, o mecanismo responsável pelo enriquecimento em lítio nas gigantes ainda […]

Abstract: Star clusters are one of the most useful places in the universe for studies of stellar and galaxy evolution. Formed when stars collapse from the same molecular cloud into a cluster, star clusters offer a unique way to study stars of a homogeneous age and chemical composition across a range of masses. In the […]

In-person seminar Abstract: The All-weather MUse Supernova Integral field Nearby Galaxies (AMUSING) survey is a successful programme that has observed more than 700 host galaxies of transient events (mostly supernovae - SNe) using the Multi Unit Spectroscopic Explorer (MUSE) instrument at the Very Large Telescope (VLT). In this talk, I will present the main goals, […]

Abstract: The Nancy Grace Roman Space Telescope, the next NASA flagship mission set to launch by May 2027, will revolutionize our understanding of the cosmos.  With a field of view 100 times greater than the Hubble Space Telescope at comparable resolution, Roman will perform an unprecedented high-latitude survey to map the distribution of dark matter […]