© 2025 Observatoire Astronomique de Strasbourg | Webdesign et développement Alchimy.
"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,...
"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...
"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...
"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...
"Mind the gap: Distinguishing disk substructures and their impact on the inner disk composition" Abstract: non communiqué...
"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...
"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...
"A chartography of space-time: Extreme - and extremely large mass ratio inspirals and our Galactic Centre" In this talk, I will explore the scientific insights we can gain fromobserving extreme-mass-ratio inspirals (EMRIs)-phenomena involving thegravitational capture of a small compact object...
Séminaire - Matthieu Quéval "Prof après des études d’astrophysique ? Un projet professionnel tout à fait pertinent !" La carrière d'enseignant est choisie régulièrement après un master, ou après une thèse ou un postdoc. Matthieu Quéval nous fera part de sa passion,...
"Formation the Milky Way's inner stellar halo and disc: insights from numerical simulations and observations" In this talk I will present recent results regarding the formation history of the Milky Way's stellar halo and disc. Gaia has conclusively shown that the inner stellar halo is dominated...