Context. Alfvénic fluctuations of various scales are ubiquitous in the corona; their non-linear
interactions and eventual turbulent cascade result in an important heating mechanism that …

We have investigated how the degree of imbalance in solar wind turbulence is modified by
large-scale velocity shears in the solar wind plasma. The balance between …

Context. Alfvénic fluctuations, as modelled by the non-linear interactions of Alfvén waves of
various scales, are seen to dominate solar wind turbulence. However, there is also a non …

The nonlinear evolution of Alfvén waves in the solar corona leads to the generation of
Alfvénic turbulence. This description of the Alfvén waves involves parametric instabilities …

High-speed solar wind streams (HSSs) interact with the preceding ambient solar wind to
form stream interaction regions (SIRs), which are a primary source of recurrent geomagnetic …

Dans ce mémoire, les équations linéaires de l'hydrodynamique et de la
magnétohydrodynamique sont développées pour un fluide conducteur en rotation uniforme …