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Roberto Maiolino (University of Cambridge)16/06/2026, 09:30Talk
The origin of the supermassive black holes at the centres of most galaxies has
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been an open problem for decades, a mystery made even deeper by the discovery
that many were already in place at the epoch of reionization. The picture has
become increasingly intriguing with the identification of an even larger
population of accreting black holes by JWST in the early universe, which exhibit... -
Silvia Belladitta (Max Planck Institute for Astronomy)18/06/2026, 10:45Talk
Quasars at the highest redshifts illuminate the Universe during its first billion years and provide crucial insights into the formation of the earliest supermassive black holes, galaxy evolution, and the epoch of reionization. In this talk, I will present recent advances in discovering and characterizing these distant beacons at the edge of cosmic time. Special attention will be given to...
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Dr Ivan Delvecchio (INAF-OAS)18/06/2026, 11:35Talk
Little Red Dots (LRDs) represent one of the most enigmatic source classes discovered by JWST. The origin of their compactness, X-ray/radio weakness, and V-shaped spectra remains a subject of intense debate. In this talk, I will present compelling evidence that hot (~800 K) dust emission dominates the rest-frame NIR (1-3 um) at a population level. By performing median stacking of NIRCam and...
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Elisabeta Lusso (Università di Firenze. Dipartimento di fisica e astronomia)18/06/2026, 11:50Talk
The discrepancy in the Hubble constant (H0) measurements between the local and early Universe, commonly referred to as the "Hubble tension", has now reached a statistical significance of 4-7σ. This suggests potential physics beyond the flat ΛCDM model. In this talk, I present compelling observational evidence for evolving dark energy derived from a new sample of Active Galactic Nuclei (AGN)...
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Manuela Bischetti (Università di Pisa)18/06/2026, 12:05Talk
By exploiting the synergy between ALMA, JWST/NIRSpec IFU and VLT/MUSE, we can now probe the multi-phase morphology and kinematics of the gaseous reservoirs in massive galaxies within the first Gyr of cosmic time. Sensitive, spatially resolved observations are essential to trace inflows and outflows and to map the distribution of metals across both interstellar (ISM) and circumgalactic (CGM)...
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Dr Giacomo Venturi (Scuola Normale Superiore)18/06/2026, 12:20Talk
The period between z~3-6 is a crucial transitional phase in galaxy evolution, leading to “cosmic noon” (z~1-3). A key actor in this phase is expected to be AGN feedback acting through energetic radiation and fast gas outflows. However, little is known so far about AGN feedback at these redshifts.
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I will present our study of AGN outflows at z~3-6 from GOODS-S and COSMOS fields, the largest... -
Sandra Zamora (Scuola Normale Superiore di Pisa)18/06/2026, 12:35Talk
Studies of massive black holes (MBHs) have been extended to higher redshifts through recent discoveries enabled by the James Webb Space Telescope, providing key constraints on the processes governing MBH formation, commonly referred to as MBH seeding. However, the origin of the first MBHs remains uncertain, with several competing hypotheses under investigation. One leading scenario involves...
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Dr Giorgio Lanzuisi (INAF-OAS)18/06/2026, 12:50Poster + Flash talk
Ultra-Fast Outflows (UFOs) are believed to be the nuclear drivers of AGN feedback, yet their properties at the peak of SMBH growth (z$\sim2-4$) remain largely unconstrained. WISSHFUL is a 2.3 Ms XMM-Newton Multi-year Heritage Program targeting 15 luminous (L$_{bol} > 10^{47}$ erg/s), non-lensed QSOs selected from the WISSH sample, complemented by coordinated NuSTAR Large Programs and...
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65. Early Black Hole Growth via Super-Eddington Accretion: insights from High-Resolution SimulationsTalk
Super-Eddington accretion may be crucial for explaining the existence of exceptionally massive black holes (BHs), exceeding 10^9 solar masses, observed as Active Galactic Nuclei at high redshifts (z∼6−7). Recent James Webb Space Telescope (JWST) observations strongly support the idea that early BHs grew significantly above the Eddington limit. Concurrently, numerical models are increasingly...
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Andrea Grazian (Istituto Nazionale di Astrofisica (INAF))Poster + Flash talk
Studying AGN population at high redshifts is crucial to understanding
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supermassive black hole (SMBH) formation and evolution, the
intergalactic medium (IGM), and cosmological reionization. One of the
most important observational indicators for the evolution of the AGN
population is the AGN Luminosity Function, which has been the subject
of intense study and revision in recent years. We...
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