Concept
Accélération de l'expansion de l'Univers
Publications associées (149)
White dwarfs as a probe of exceptionally light QCD axions
We study the effects of exceptionally light QCD axions on the stellar configuration of white dwarfs. At finite baryon density, the nonderivative coupling of the axion to nucleons displaces the axion from its invacuum minimum, which implies a reduction of t ...
Amer Physical Soc2024First-principles thermodynamics of precipitation in aluminum-containing refractory alloys
Materials for high -temperature environments are actively being investigated for deployment in aerospace and nuclear applications. This study uses computational approaches to unravel the crystallography and thermodynamics of a promising class of refractory ...
Pergamon-Elsevier Science Ltd2024Time-Delay Cosmography: Measuring the Hubble Constant and Other Cosmological Parameters with Strong Gravitational Lensing
Frédéric Courbin, Martin Raoul Robert Millon
Multiply lensed images of a same source experience a relative time delay in the arrival of photons due to the path length difference and the different gravitational potentials the photons travel through. This effect can be used to measure absolute distance ...
Springer2024Probing the nature of Dark Energy through the study of large scale structures using spectroscopic surveys and their simulations
Measurements of large-scale structure (LSS), as performed on the largest 3D map of over two million extragalactic sources from the Sloan Digital Sky Survey, together with measurements of the cosmic microwave background (CMB) anisotropies, are in complete a ...
EPFL2023The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements
Martin Raoul Robert Millon, Mathilde Jauzac, Vivien François Bonvin, Anja Von der Linden
In late 2014, four images of Supernova (SN) "Refsdal," the first known example of a strongly lensed SN with multiple resolved images, were detected in the MACS J1149 galaxy-cluster field. Following the images' discovery, the SN was predicted to reappear wi ...
IOP Publishing Ltd2023