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- Centre National de la Recherche ScientifiqueFR176 papers
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5 papers · 1 filter
Mass Outflows from Accretion Disks: Old and New Challenges
D. Proga
We summarize recent developments in modeling of mass outflows from accretion disks in AGN. We illustrate how the hydrodynamical and magnetohydrodynamical wind structures revealed i…
Lagrangian Averaging for Compressible Fluids
H. S. Bhat, R. C. Fetecau, J. E. Marsden +2
This paper extends the derivation of the Lagrangian averaged Euler (LAE-) equations to the case of barotropic compressible flows. The aim of Lagrangian averaging is to regulariz…
Transition from Resonances to Bound States in Nonlinear Systems: Application to Bose-Einstein condensates
Nimrod Moiseyev, L. D. Carr, Boris A. Malomed +1
It is shown using the Gross-Pitaevskii equation that resonance states of Bose-Einstein condensates with attractive interactions can be stabilized into true bound states. A semiclas…
Discrete Elastic Model for Two-dimensional Melting
Yves Lansac, Matthew A. Glaser, Noel A. Clark
Our previous molecular dynamic simulation studies of simple two-dimensional (2D) systems \cite{matt_big} suggested that both geometrical defects (localized, large-amplitude deviati…
On Stellar Dynamo Processes and Differential Rotation
Allan Sacha Brun
Many stars exhibit strong magnetic fields, some of which are thought to be of primordial origin and others a sign of magnetic dynamo processes. We briefly review the results of obs…