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animation:workshops:2013:plasma [2013/04/19 14:11] sbarends [Shocks, Reconnection, and Particle Acceleration in Plasma-fluids] |
animation:workshops:2013:plasma [2015/01/07 10:04] (Version actuelle) |
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| Centre Blaise Pascal, ENS-Lyon, France \\ | Centre Blaise Pascal, ENS-Lyon, France \\ | ||
| - | June 20-21, 2013 \\ | + | June 20-21, 2013 \\ |
| [[http://plasma2013.sciencesconf.org/|Website of the workshop]] | [[http://plasma2013.sciencesconf.org/|Website of the workshop]] | ||
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| Organizing committee: | Organizing committee: | ||
| * **Rolf Walder**, CRAL, École normale supérieure de Lyon | * **Rolf Walder**, CRAL, École normale supérieure de Lyon | ||
| - | * **Christophe Winisdoerffer**, CRAL, École normale supérieure de Lyon | + | * **Alexandre Marcowith**, LUPM, Laboratoire Univers et Particules, Université Montpellier 2, France |
| + | * **Andrei Bykov**, Ioffe Institute, Russian Academy of Sciences, St. Petersburg, Russia | ||
| + | * **Christophe Winisdoerffer**, CRAL, École normale supérieure de Lyon, France | ||
| + | * **Mickaël Melzani**, CRAL, École normale supérieure de Lyon, France | ||
| Administrative coordination: | Administrative coordination: | ||
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| The workshop is supported by: | The workshop is supported by: | ||
| - | * Centre Blaise Pascal | + | * **CBP** - Centre Blaise Pascal, Lyon, France |
| - | * FLMSN | + | * **FLMSN** - Fédération Lyonnaise de Modélisation et Sciences Numériques |
| - | * CRAL | + | * **CRAL** - Centre de Recherche Astrophysique de Lyon |
| + | * **ENSL** - École normale supérieure de Lyon | ||
| + | * **Université de Lyon** | ||
| + | * **CNRS** - Centre National de la Recherche Scientifique | ||
| - | ===== Summary ===== | ||
| - | Geophysical flows, oceans and atmosphere, have a major impact on our societies, not only because they are at the core of the climate system, but also because their understanding give large economical, social and environmental impacts. | + | |
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| + | ===== Summary ===== | ||
| - | The dynamics of these flows involve an astonishing large range of spatial and temporal scales, which renders predictability difficult, and which makes numerical and theoretical study of the climate system very challenging. On the one hand, numerical modellers i/ either try to develop parametrizations to account for the effect of scales that are not resolved due to computational limitations when simulating the whole climate system, ii/ or propose the design of models with a lower complexity, reproducing reasonably well the large scales dynamics and statistics in climate problems. On the other hand, theoreticians try to find ideas explaining and predicting in details, the self-organization of these flows, independently of the dynamical complexity. The aim of this workshop is to bring together scientists from these different community, and possibly fertilize new work within both groups. | + | The acceleration of non-thermal particles in large scale flows is of prime importance in astrophysics and beyond. Cosmic accelerators can energize particles up to 10²⁰ eV. The flux of high-energy cosmic rays has a strong impact on Earth, on its climate and weather. |
| + | However, accelerators embedded in large scale MHD flows within astrophysical objects still remain enigmatic in various ways. The aim of the workshop is to bring together people of different communities and approaches: modelers of large scale flows, scientists scrutinizing fundamental processes, people who are deriving observable signatures, and numerical specialists. We also aim at bringing together the French with the European community and strengthen the collaboration between them, specially emphasizing the Rhône-Alpes region. | ||
| - | ===== Program ===== | + | The first day concentrates on theoretical questions of plasma physics, particle acceleration, magnetic reconnection, and turbulence in plasma fluids. This includes open questions of how to model these phenomena and how to realize such models numerically. |
| - | The acceleration of non-thermal particles in large scale flows is of prime importance in astrophysics and beyond, for example in earth science where high-energy cosmic rays likely have a strong influence on climate and weather. However, the mechanism of accelerators embedded in large scale MHD flows in space is barely understood. The computational group of CRAL at ENS-Lyon has started to establish unified models : MHD/plasma-kinetics/radiation. The suggested 2 days workshop shall bring together the French with the European community and strengthen the collaboration between them, specially emphasizing the Rhône-Alpes region. | + | The second day presents results of modeling concrete astrophysical objects: microquasars and X-ray binaries, pulsars and their winds, gamma-ray bursts, solar wind, supernova remnants and superbubbles, the interstellar medium. |