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Galactic scaling relations out to hundreds of kpc from weak lensing The dynamical properties of galaxies exhibit strong regularities such as the Baryonic Tully-Fisher Relation and the Radial Acceleration Relation (RAR). The RAR relates the baryonic Newtonian acceleration $g_"bar"$ and the...
"Where my DAEMON hides -- The emergence of self-similar cosmic structures" Large-scale N-body simulations have successfully reconstructed cosmic structure formation with increasing resolution and complexity, as observations corroborate. Complementary efforts have arrived at a hydrodynamical...
"FAIR & open data publication at CDS -- focusing on VizieR" VizieR is one of the three main CDS services, along with SIMBAD andAladin which complement each other. It provides the most completelibrary of published astronomical catalogs --currently ~25,200-- withverified and enriched data,...
"Euclid - the first year in space" After more than a dozen years of development, Euclid has been launched almost a year ago and started its 6 year extragalactic surveys early 2024. I will provide an overview over the mission, its core science, and will show a few of the first public images -...
"Présentation des bilans GES et des actions pour réduire notre empreinte environnementale à...
"Can (stellar) bars form in presence of hot thick discs" Stellar bars are ubiquitous in disc galaxies (including the Milky Way) in the Local Universe, with about two-thirds of them harbouring a stellar bar. Bars are present in high redshift (z ~1) disc galaxies as well. Recent JWST...
Unravelling the growth of the first black holes using JWST and...