Séminaire – Rebecca Bowler (Univ. of Manchester)
"Formation and evoltuion of galaxies in the early...
22 mai 2026
10 avril 2026
Séminaire – Donia Baklouti (IAS)
"Analysis of samples from the asteroids Ryugu and Bennu in the laboratory and implications for prebiotic chemistry issues" Undifferentiated small bodies, including small asteroids, are objects whose chemical composition has changed little for more than 4 billion years. Studying them provides...
27 mars 2026
Séminaire – Françoise Genova (ObAS)
"L'évolution en cours de l'évaluation de la recherche" La nécessité de faire évoluer l'évaluation de la recherche pour prendre en compte la diversité des activités et des produits de celle-ci est largement reconnue au niveau national, européen et international, ainsi que par les...
20 mars 2026
Séminaire – Raphaël Errani (Carnegie Mellon)
"Collisional Dynamics in the Faintest Galaxies" Guided by the recent discoveries of faint Milky Way satellites with structural properties lying at the interface between the ultra‑faint galaxy and globular‑cluster regimes, I will discuss how micro‑galaxies can be distinguished...
13 mars 2026
Séminaire – Philippe Brax (IPHT)
"Early dark energy and phantom crossing in the axio-dilaton system" Recent measurements by DESI suggest that dark energy is dynamical with an usual feature called phantom crossing.I will present models of coupled dark energy to matter where phantom crossing is natural. These models can...
6 mars 2026
Séminaire – Lucas Valenzuela (Munich Observatory)
"What's Your Story? Deciphering galaxy formation histories from present-day properties" Since around 100 years it has been known that our Milky Way is not the only island of stars in the Universe. Many other galaxies have since been found, featuring an immense variety of properties. Diverse...
27 février 2026
Séminaire – Rodrigo Ibata (ObAS)
"Lex ex Machina" Over the next few years, Rubin/LSST, Euclid, Roman, SKA, and other instruments will produce petascale, information‑rich datasets that trace stars, galaxies, and large-scale structure with unprecedented fidelity. Hidden in these data may be regularities that point to new and...
13 février 2026
Séminaire – Riccardo Ferrazzoli (INAF)
"X-ray Polarimetry of Supernova Remnants with IXPE" Supernova Remnants (SNRs) are among the most important sources of non-thermal X-rays in the sky and are likely contributors to Galactic cosmic rays, and represent ideal targets to showcase the capabilities of the Imaging X-ray Polarimetry...
6 février 2026
Séminaire – Frédérique Motte (IPAG)
"Star formation in hierarchical molecular clouds: Questioning our certainties of universality" Understanding star formation requires addressing the challenge of determining how the discrete distribution of stars emerges from the continuous distribution of gas in molecular clouds. The...
30 janvier 2026
Séminaire – Ana Palacios (LUPM)
"Stellar evolution in the JWST and PLATO era" Stellar physics is more than ever at the heart of many questions in astrophysics. In this talk I will go through a - certainly biased - review of the main challenges this discipline needs to overcome and how major missions and instruments will...