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Past Events

Gravitational particle production and leptogenesis

Dr. Yuber F. Perez-Gonzalez (UAM and IFT) • 2025-10-08 • 15:00 - 16:00 • Modulo 15, Sala 201

Abstract: In a curved spacetime, the definition of particles depends on the observer's frame of reference. Consequently, in non-stationary spacetimes, such as those present in the Early Universe during and after inflatio…

[extra] Structure and dynamics of the local group galaxies

Prof. Juntai Shen (Shanghai Jiao Tong University) • 2025-10-03 • 11:00 AM - 12:00 AM • Module 15, Sala 201

Abstract: As the expansion of the universe continues to accelerate, the internal secular evolution of galaxies becomes more important as the distance between galaxies generally increases. The largest galaxies in the loca…

The hunt for dark matter using galaxy clusters

Dr. Ellen Sirks (Juan de la Cierva fellow, UAM) • 2025-10-01 • 3:00 PM - 4:00 PM • Module 15, Sala 201

Abstract: Dark matter constitutes the majority of the matter content of the Universe, yet its fundamental properties remain unknown. Its presence is inferred through its gravitational effects on cosmic structures of all…

[extra] Early (z>=2) massive quenched galaxies: accurate merger tree modelling and insights from COLIBRE

Angel Chando Gomez (ICRAR, University of Western Australia) • 2025-10-01 • 11:00 AM - 12:00 AM • Module 08, Sala 300

Abstract: Understanding how massive quenched galaxies at z>=2, recently revealed in unexpectedly large numbers by JWST, form and evolve requires accurate models. I will first discuss challenges in semi-analytic models, w…