Séminaire – Sukyoung Yi (Younsei University)
"NewCluster: a new high-resolution simulation for galaxy cluster in the era of...
9 mai 2025
25 avril 2025
Séminaire – Judy Chebly (AIP)
"An inside out view of the coronae and winds of cool stars" Cool stars, like our Sun, produce powerful stellar winds that shape their evolution and influence the atmospheres of orbiting planets. While the solar wind is well studied, our understanding of winds from other cool stars remains...
11 avril 2025
Séminaire – Miroslava Dessauges-Zavadski (Université de Genève)
"Star clusters shaping the morphology and tracing the ISM of galaxies out to the reionisation epoch" The HST observations have revealed that more than 60% of star-forming galaxies at cosmic noon have peculiar morphologies characterised by UV-bright clumps. Such morphologies have now been found...
4 avril 2025
Séminaire – Divya Rawat (ObAS)
"Evolution of the Comptonizing medium of the black-hole candidate Swift J1727.8–1613 along the accretion state transition using NICER" Evidence for a strong connection between the X-ray corona and the radio jet in black hole X-ray binaries has grown significantly. During state transitions,...
28 mars 2025
Séminaire – Nicolas Deangelis (INAF Rome)
"Compton Polarimetry of Gamma-Ray Transients: Insights from Gamma-Ray Bursts to Solar Flares" Compton polarimetry offers a unique window into the physics of high-energy astrophysical transientsby directly probing the geometry, magnetic field structure, and radiation mechanisms in...
21 mars 2025
Séminaire – Andreas, Bauswein (GSI, Darmstadt)
"Constraining the properties of high-density matter with neutron star merger observations" The composition and thermodynamic properties of neutron star matter are still elusive. Being composed of high-density matter neutron stars are a natural laboratory to learn more about the fundamental...
14 mars 2025
Séminaire – Jonathan, Biteau (IJC Lab)
"The multi-messenger spectrum of the universe" Our understanding of the radiation record of the universe has advanced dramatically over the past decade. The brightness of the extragalactic sky is now measured in photons, neutrinos, and cosmic rays by observatories on the ground, in the depths...
7 mars 2025
Séminaire – Sofia Savvidou (MPIA)
"Mind the gap: Distinguishing disk substructures and their impact on the inner disk composition" Abstract: non communiqué...
28 février 2025
Séminaire – Francesca Fragkoudi (Durham)
"The formation, evolution, and dark matter content off barred galaxies in LCDM" The advent of high resolution hydrodynamical cosmological simulations allows us to now study the internal dynamics of barred spiral galaxies -- such as our own Milky Way -- within the full ΛCDM cosmological...
21 février 2025
Séminaire – Laurent Chemin (ObAS)
"The pattern speed of the stellar bar of the Large Magellanic Cloud measured with Gaia data" The Large Magellanic Cloud, the mini barred spiral galaxy distant by 50 kpc from the Milky Way, has been observed extensively by the ESA-Gaia satellite since 2014. For about 11 million stars, the LMC...