Small-amplitude fluctuations in the magnetized solar wind are measured typically by a
single spacecraft. In the magnetohydrodynamics (MHD) description, fluctuations are typically …

The large temperature gradients in the solar transition region present a significant challenge
to large-scale numerical modelling of the Sun's atmosphere. In response, a variety of …

Oscillatory power is pervasive throughout the solar corona, and magnetohydrodynamic
(MHD) waves may carry a significant energy flux throughout the Sun's atmosphere. As a …

We find evidence for the first observation of the parametric decay instability (PDI) in the
lower solar atmosphere. In particular, we find that the power spectrum of density fluctuations …

The solar atmosphere is known to contain many different types of wave-like oscillation.
Waves and other fluctuations (eg, turbulent eddies) are believed to be responsible for at …

We consider the behaviour of Alfvén waves propagating in a medium with random density
perturbations. The imposed density perturbations have a broad-band spectrum and their …

In magnetized, stratified astrophysical environments such as the Sun's corona and solar
wind, Alfv\'enic fluctuations''reflect''from background gradients, enabling nonlinear …

We study properties of intensity disturbances along polar coronal rays that are associated
with plumes below. For this, we draw azimuth–time images of extreme ultraviolet (EUV) …

We report the first experimental detection of a reflected Alfv\'en wave from an Alfv\'en-speed
gradient under conditions similar to those in coronal holes. The experiments were …

The transport of waves and turbulence beyond the photosphere is central to the coronal
heating problem. Turbulence in the quiet solar corona has been modeled on the basis of the …