Research
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2025.06.10
New models to interpret near and far observations of the metal-poor Universe
The Universe started without the heavy elements that make the complexity of our surrounding world (e.g. carbon, oxygen). In this talk, I will showcase advances in the numerical modelling of how these chemical elements are produced in stars, how they are dispersed around young galaxies by energetic events, and how they get ionized to power the emission and absorption lines we observe in the spec...
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2025.06.10
Do's and don'ts of observing proposal writing
Advances in astrophysics are often data driven. Yet, large observing facilities capable of collecting the most sensitive data are expensive. Telescope time therefore constitutes a precious resource, part of which is allocated via an open and competitive process. In this session, I will share reflections on observing proposal writing, aimed primarily at junior scientists (PhDs, postdocs) who are...
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2025.05.16
从小尺度到宇宙大尺度探索超弥散星系的形成机制 Unveiling the Formation Mechanisms of Ultra-Diffuse Galaxies: From Small Scale to Large Scale
Ultra-Diffuse Galaxies (UDGs) represent an extraordinary class of galaxies with effective radii comparable to the Milky Way yet stellar masses only 1/100 to 1/1000 of our Galaxy. Found in a variety of cosmic environments—from galaxy clusters and groups to large-scale filaments and cosmic voids—their origins remain a subject of intense debate, positioning them at the forefront of extragalactic...
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2025.05.14
Non-thermal pressure in galaxy clusters: methods, models, constraints
I will discuss the role of non-thermal pressure support as a major source of the difference between the hydrostatic and the total ``true'' halo mass in galaxy clusters. I will present new models and methods to constrain the non-thermal pressure, highlighting the role of the next generation of X-ray observatories, like XRISM and NewAthena, in constructing a consistent picture of the formation an...
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2025.05.07
Metallicity Correlations in Galaxies
Integrated field unit (IFU) spectroscopy provides a unique window to explore gas-phase oxygen abundances in the interstellar medium (ISM) of galaxies in the local Universe. Two-point correlations are one of the next-generation methodologies proposed to extract new information on ISM diffusion from metal fields inside galaxies. I will present two-point correlation analyses using CALIFA and MUSE ...
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