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"Reevaluating the cosmological redshift: insights into inhomogeneities and irreversible processes" Understanding the expansion of the Universe remains a profound challenge in fundamental physics. The complexity of solving General Relativity equations in the presence of intricate, inhomogeneous...
"The many facets of interaction-induced star-formation in galaxies" What is the spectrum of possible outcomes when galaxies merge? How often, and on which time scales, can this lead to accelerated vs. slowing growth?A key step towards understanding different evolutionary pathways is to quantify...
"Dynamics of the Spiral Arms as Seen by Gaia DR3 and Simulations" Although it is widely accepted that we live in a spiral galaxy, the location, population, and even the number of spiral arms remain controversial. These uncertainties arise from our position within the Milky Way disc, which...
"NewCluster: a new high-resolution simulation for galaxy cluster in the era of JWST" The issue of massive galaxies found at high redshifts by JWST is challenging. I will discuss a few possible approaches to explain it: e.g., the environmental effects, black hole accretion history, and...
"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...
"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...
"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...
A l’occasion d’une nouvelle publication de résultats scientifiques et de données du télescope spatial Euclid de l’agence spatiale européenne (ESA), la partie française du Consortium scientifique de la mission organise un événement presse / médias à Strasbourg. Il se tiendra le...