Séminaire – Lami Suleiman (Deutsches Elektronen-Synchrotron)
"Neutron...
2 octobre 2026
Séminaire – Elena Shablovinskaia (MPIFR Bonn)
"AGN (spectro)polarimetry as a probe of black hole environments: from scattering regions to compact nuclear activity" Why do some supermassive black holes launch powerful relativistic jets while others remain radio-quiet? Magnetic fields are likely an important part of the answer, yet they...
25 septembre 2026
Séminaire – Kathleen Sellick (Univeristy of KwaZulu-Natal, South Africa)
"The Evolution of Crustal Magnetic Fields in Isolated Radio Pulsars" The long term evolution of neutron star magnetic fields remains an important open problem in pulsar astrophysics, with direct implications for the observed properties of isolated radio pulsars. In this work, we investigate the...
18 septembre 2026
Séminaire – Joanna Berteaud (Royal Holloway, University of London)
"Artificial Intelligence for Exceptional Interiors" Neutron stars are exceptionally dense. They offer a unique window into understanding the mysterious equation of state of dense matter, which can be probed via radio and X-ray observations of pulsars. Sudden spin-ups, mainly detected at radio...
18 septembre 2026
Soutenance de thèse – Thomas Oliveira – 13h00
"Star formation history in the solar neighbourhood from the evolution of X-ray emission of young stars" Young stellar objects in the solar neighbourhood are direct tracers of recent star formation in our Galaxy.This thesis investigates their spatial distribution and asks whether they share a...
11 septembre 2026
Séminaire – Alba Covelo Paz (ObAS)
"Star formation in the first billion years: a James Webb Space Telescope perspective" The first billion years of cosmic history witnessed the formation and build-up of the first galaxies, likely through a bursty process characterised by stochastic bursts of star formation followed by more...
4 septembre 2026
Séminaire – Gayathri Gururajan (SISSA)
"The role of environment in the star-formation and evolution of galaxies at Cosmic noon" The cosmic star-formation rate density, molecular gas density and the AGN activity of the Universe peak at z ∼ 2-3, showing the Universe is most active at this epoch. The nature of the galaxies at these...
3 septembre 2026
Soutenance de thèse – Mattéo Sautron – 14h00
"Study of the population of pulsars and magnetars." This PhD thesis is devoted to an in-depth study of the Galactic population of pulsars and magnetars using population synthesis simulations. Population synthesis is a powerful numerical tool that allows one to infer the parameters...
12 août 2026
Eclipse de Soleil du 12 août 2026
Eclipse partielle de Soleil du 25 octobre 2022. Crédits: Sébastien Derriere, ObAS Une éclipse solaire se produit lorsque la Lune passe entre le Soleil et la Terre, projetant son ombre sur notre planète et masquant partiellement ou totalement la lumière stellaire. Contrairement à une...
7 août 2026
Nuit des étoiles 2026 – 7 août
La traditionnelle Nuit des étoiles se tiendra cette année dans la soirée du vendredi 7 aout 2026.Ce sera l'occasion d'observer le ciel et une opportunité pour rencontrer et échanger avec des professionnels et passionnés d’astronomie. En collaboration avec le Jardin des Sciences, la...