le 15 novembre 2023, 10h45 à 12h45, Guillaume Loizelet, salle Jules Verne, OMP, site Belin Resumé: It is not possible to develop a mathematical model without a reliable and consistent database.In this session, I will first detail the cultural context that led the Babylonian « astronomers » to establish formidable data collections in the form of clay tablets. […]
le 6 décembre 2024, 10h45 à 12h45, Florian Debras, salle Jules Verne, OMP, site Belin Resumé: Since 2016, the Juno satellite is orbiting Jupiter and has completely changed our understanding of the planet. From the atmosphere to the deep interior, including the auroras, Juno is providing a wealth of data that challenges models of Jupiter. […]
le 22 novembre 2024, 10h45 à 12h45, Guillaume Loizelet, salle Jules Verne, OMP, site Belin Resumé: In this session, I will review the results obtained by historians of astronomy over the last fifty years, which have led to a complete rethinking of the idea of a scientific revolution developed in the mid-twentieth century.I will first […]
le 22 novembre 2024, 10h45 à 12h45, Guillaume Loizelet, salle Jules Verne, OMP, site Belin Resumé: Using the available databases, it was possible for ancient « astronomers » to propose models to account for observable celestial movements. The climax of these attempts is undoubtedly the great mathematical synthesis (known as the Almagest) written in Greek by the […]
le 8 novembre 2024, 10h45 à 12h45, Guillaume Loizelet, salle Jules Verne, OMP, site Belin Resumé: It is not possible to develop a mathematical model without a reliable and consistent database.In this session, I will first detail the cultural context that led the Babylonian « astronomers » to establish formidable data collections in the form of clay tablets. […]
le 29 novembre 2024, 10h45 à 12h45, Rungployphan Kieokaew, salle Jules Verne, OMP, site Belin Resumé: Space weather refers to time-varying conditions in the near-Earth environment as influenced by the Sun via the complex couplings between various envelops of plasmas: the solar wind and magnetic fields, the Earth’s magnetosphere and ionosphere, as well as the […]
le 18 octobre 2024, 10h45 à 12h45, David Tsang, salle Jules Verne, OMP, site Belin Resumé: I will discuss the basic structure of Neutron stars, including the Tolman-Oppenheimer-Volkoff equations, the dense matter equation of state, and the properties of the neutron star crust and core. I will then discuss how asteroseismic modes of a neutron star […]
le 13 décembre 2024, 10h45 à 12h45, Didier Barret, salle Jules Verne, OMP, site Belin Resumé: The X-ray Integral Field Unit is the high resolution spectrometer to fly on-board the Athena space X-ray observatory of the European Space Agency. It will enable astrophysicists to study the formation and evolution of the Universe and the physics of […]
le 4 octobre 2024, 10h45 à 12h45, Florian Debras, salle Jules Verne, OMP, site Belin Resumé: More than 5500 exoplanets have been discovered since 1995, the majority of which having roughly the size and mass of Jupiter as larger planets are easier to detect.In 20 years, our observation techniques have largely improved, and we can obtain reliable constraints on […]