by
Prof.Abraham C.-L. Chian(National Institute for Space Research (INPE), Brazil)
→
Europe/Stockholm
FA31
FA31
Description
The plasma universe is an electrodynamically complex system
dominated by nonlinear phenomena such as Alfvén and Langmuir intermittent
turbulence. Alfvén waves/turbulence - related to fluctuations in
the ambient magnetic field - play an important role in the dynamics
of solar-terrestrial environment, in the evolution of star forming
regions, and in the formation of large-scale structures in the early
universe. Radio emissions emitted by Langmuir turbulence - related
to fluctuations of electron and ion densities - provide a remote
electromagnetic tracer of nonthermal plasma processes (e.g., magnetic
reconnection) occurring in the ionosphere, magnetosphere, solar wind,
and solar active regions. The dynamical systems approach is capable of
elucidating the onset mechanism of turbulence as well as the chaotic
nature of the plasma universe.
