Séminaire – Kerwann Tep (ObAS)
"Linear stability of stellar...
21 November 2025
Séminaire – Mélina Poulain (Oulu university)
"HST observations of nuclear star clusters in 41 MATLAS dwarf galaxies: properties and implications in terms of formation scenario" Debated for decades, the formation of nuclear star clusters (NSCs) --the densest stellar objects in the Universe-- currently opposes two main scenarios: the...
14 November 2025
Séminaire – Silvia Martocchia (LAM)
"The VESTIGE survey: reconstructing the star formation history of massive early-type galaxies through their UV and Halpha emission"Galaxies undergo remarkable morphological transformations, and it is still unclear how they change their shape from disks to spheroids, how they build up their mass...
7 November 2025
Séminaire – Paulo Freire (MPIfR Bonn)
"NGC 1851E: A millisecond pulsar in a binary system with a compact companion in the mass gap between neutron stars and black holes" Since March 2019, a large international collaboration (known as “Transients and Pulsars with MeerKAT”, or “TRAPUM”) has been using the 64-antenna MeerKAT...
31 October 2025
Séminaire – David Alonso (University of Oxford Department of Physics)
"Reconstructing the history of our Universe with projected Large-Scale Structure" The last twenty years have seen a tremendous growth in the quantity, variety, and quality of multi-wavelength astronomical observations of the large-scale structure (LSS). Our ability to observe different...
From 27 October 2025 to 30 October 2025
CoCoNuT meeting 2025
27-30 Oct 2025 The CoCoNuT Meeting is a series of workshops aiming at fostering collaboration among relativistic astrophysics groups, specially within Europe. The series has been taking place yearly since 2009 and this year is hosted by Strasbourg University. This edition will be...
17 October 2025
Séminaire – Laurence Tresse (Laboratoire d’Astrophysique de Marseille)
"The Wide-field Spectroscopic Telescope — WST" I will present the WST project, conceived as a state-of-the-art spectroscopic facility intended to provide a critital capability currently absent from the global astronomical infrastructur. WST is envisioned to play a foundational role in...
10 October 2025
Séminaire – Stefano Torniamenti (Max Planck Institute for Astronomy)
"Tracing the origin of Intermediate-Mass Black Holes in the gravitational-wave era" In the last decade, gravitational-wave observations have provided crucial insights into the populations of binary compact objects, helping to address key open questions about their mass spectrum and formation...
30 September 2025
Soutenance de thèse – Yassin-Rany Khalil – 10h00
"Deciphering the dynamics of the Milky Way bar and spiral arms with...
26 September 2025
Séminaire – Junais (Instituto de Astrofísica de Canarias)
"Low surface brightness galaxies in the era of deep large-sky surveys and artificial intelligence" Low surface-brightness (LSB) galaxies, which are typically fainter than the night sky, contribute to the majority of the total number density of galaxies in the universe. Therefore, they are a...