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From 25 to 30 November
PHYSICS and ASTROPHYSICS of COSMIC RAYS
Observatoire de Haute Provence
Saint Michel l’Observatoire, Franceview website Cosmic rays (CR) have a central position in many major astrophysical issues, from the solar system to galaxy clusters. They stand for a testimony on the conditions in the most extreme objects in the Universe and plays a key role in the physics and chemistry of the interstellar medium (ISM), with consequences ranging from star formation and galactic magnetic fields to the production of light elements. Moreover, the CR could carry information on Dark Matter. The results of observations, accumulated during the past decade, have considerably transformed our knowledge of the CR (...) 
Thursday 12 December
10h00 – 12h00Soutenance de These de Lorenzo Valvo: Hamiltonian Perturbation Theory on a Poisson Algebra. Application to a Throbbing Top and to Magnetically Confined Particles
Lorenzo Valvo
Amphi 5
CPT Marseille LuminyThe Hamiltonian formulation of classical mechanics reveals an underlying Lie algebraic structure which is a key element for developing an efficient perturbation theory. But Lie structures are met in a wider class of dynamical systems, called Poisson systems; some examples are, among others, fluid dynamics, electrodynamics, kinetic theory. In the first part of this thesis, we propose a purely algebraic approach to classical perturbation theory to extend its scope to any Poisson system. In this method, introduced in [Vittot, 2004], a (Lie) transform allows to split the (...) 
From 3 to 9 May 2020
Hot topics in Modern Cosmology: Spontaneous Workshop XIV
IESC Cargese, France
Cargese, Franceview website Spontaneous Workshop (SW) brings together specialists in particle physics, astrophysics and theoretical physics at the Institute of Scientific Studies of Cargèse (IESC) to exchange recent knowledge on Cosmology. The goal is to stimulate debate for generating innovative ideas on emerging issues. With this in mind, the number of participants is limited to 3040 and the workshop program is based on an optimal number of concise presentations, with a sufficient discussion space to facilitate interactions between participants. Postdoctoral and PhD students are encouraged to (...)