Joint Astrophysical Colloquium
The Beautiful Confusion: Super-early galaxies seen by the James Webb Space Telescope
Andrea Ferrara (Scuola Normale Superiore)
Thursday 20/03/2025 @ 11:30, Sala Antonio Sollima (IV piano Battiferro)
One of the major surprises provided by the first two years of early Universe observations by JWST has been the detection of a stunning overabundance of luminous, and likely massive, galaxies at redshift z>10. As the first spectroscopic confirmations are accumulating, it is crucial and timely to investigate these important and yet unknown aspects of early galaxy formation and evolution. At a time at which ALMA has laid the foundations of our understanding, Webb seems to hint at a possibly conflicting scenario. These (apparent?) contradictions need to be solved in the framework of studies that combine theory, cosmological simulations and the most advanced IR/sub-mm observations. I will analyze the possible new scenarios and propose some preliminary answers to the above questions.